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<SEC-DOCUMENT>0000891836-07-000092.txt : 20070309
<SEC-HEADER>0000891836-07-000092.hdr.sgml : 20070309
<ACCEPTANCE-DATETIME>20070309160019
ACCESSION NUMBER:		0000891836-07-000092
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20070309
DATE AS OF CHANGE:		20070309

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MOTIENT CORP
		CENTRAL INDEX KEY:			0000913665
		STANDARD INDUSTRIAL CLASSIFICATION:	COMMUNICATION SERVICES, NEC [4899]
		IRS NUMBER:				930976127
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-42503
		FILM NUMBER:		07684539

	BUSINESS ADDRESS:	
		STREET 1:		12010 SUNSET HILLS ROAD,
		STREET 2:		6TH FLOOR
		CITY:			RESTON
		STATE:			VA
		ZIP:			20190
		BUSINESS PHONE:		703-483-7806

	MAIL ADDRESS:	
		STREET 1:		12010 SUNSET HILLS ROAD,
		STREET 2:		6TH FLOOR
		CITY:			RESTON
		STATE:			VA
		ZIP:			20190

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AMERICAN MOBILE SATELLITE CORP
		DATE OF NAME CHANGE:	19931019

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BCE INC
		CENTRAL INDEX KEY:			0000718940
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE) [4813]
		IRS NUMBER:				99999999
		STATE OF INCORPORATION:			A8
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		1000 DE LA GAUCHETIERE OUEST
		STREET 2:		BUREAU 4100 MONTREAL
		CITY:			QUEBEC CANADA
		STATE:			A8
		ZIP:			H3B 4Y7
		BUSINESS PHONE:		5143977000

	MAIL ADDRESS:	
		STREET 1:		1000 DE LA GAUCHETIERE OUEST
		STREET 2:		BUREAU 4100 MONTREAL
		CITY:			QUEBEC CANADA
		STATE:			A8
		ZIP:			H3B 4Y7

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BELL CANADA ENTERPRISES INC
		DATE OF NAME CHANGE:	19880111
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>sc0036-07.htm
<DESCRIPTION>AMENDMENT NO. 2 TO SCHEDULE 13D
<TEXT>
<HTML>
<HEAD>
<TITLE>
Schedule 13D Amendment No. 2
</TITLE>
</HEAD>
<BODY>


<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>UNITED STATES<br>
</FONT><FONT FACE="Times New Roman, Times, Serif" SIZE=3>SECURITIES AND
EXCHANGE COMMISSION <br>
</FONT><FONT FACE="Times New Roman, Times, Serif" SIZE=3>WASHINGTON, D.C. 20549 </FONT></H1>

<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>SCHEDULE 13D<br>
</FONT><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Under the Securities
Exchange Act of 1934 <br>
</FONT><FONT FACE="Times New Roman, Times, Serif" SIZE=3>(Amendment No. 2)* </FONT></H1>
<div align="center"><strong><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Motient Corporation </FONT>
</strong></div>
<hr align=LEFT width=100% size=1 noshade>
<div align="center"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>(Name of Issuer)</FONT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><br>
  <br>
    <strong><font size="3">  Common Stock, par
  value $0.01 per share </font></strong></FONT>
</div>
<HR ALIGN=LEFT WIDTH=100% SIZE=1 NOSHADE>
<div align="center"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>(Title of Class of Securities) </FONT>
</div>
<div align="center"><FONT FACE="Times New Roman, Times, Serif" SIZE=3><strong><br>
  619908304 </strong></FONT>
</div>
<HR ALIGN=LEFT WIDTH=100% SIZE=1 NOSHADE>
<div align="center"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>(CUSIP Number) </FONT>
</div>
<div align="center"><FONT FACE="Times New Roman, Times, Serif" SIZE=3><br>
  <strong>  BCE Inc. <br>
  </strong></FONT><strong><FONT FACE="Times New Roman, Times, Serif" SIZE=3>1000, rue de la
  Gaucheti&egrave;re Ouest <br>
  Bureau 3700 <br>
Montr&eacute;al,
  Qu&eacute;bec H3B 4Y7 <br>
  Canada </FONT>
  </strong></div>
<HR ALIGN=LEFT WIDTH=100% SIZE=1 NOSHADE>
<div align="center"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>(Name, Address and
  Telephone Number of Person Authorized to<br>
  Receive Notices and
  Communications) </FONT>
</div>
<div align="center"><FONT FACE="Times New Roman, Times, Serif" SIZE=3><br>
  <strong>  March 7, 2007 </strong></FONT>
</div>
<HR ALIGN=LEFT WIDTH=100% SIZE=1 NOSHADE>
<div align="center"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>(Date of Event which
  Requires Filing of this Statement) </FONT>
</div>
<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><br>
  <FONT FACE="Times New Roman, Times, Serif" SIZE=2>If
  the filing person has previously filed a statement on Schedule 13G to report the
  acquisition that is the subject of this Schedule 13D, and is filing this schedule because
of &sect;&sect;240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box [_]. </FONT></P>
<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Note</B>:
Schedules filed in paper format shall include a signed original and five copies of the
schedule, including all exhibits. <I>See</I> &sect;240.13d-7 for other parties to whom
copies are to be sent. </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>*
The remainder of this cover page shall be filled out for a reporting person&#146;s initial
filing on this form with respect to the subject class of securities, and for any
subsequent amendment containing information which would alter disclosures provided in a
prior cover page. </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>The
information required on the remainder of this cover page shall not be deemed to be
&#147;filed&#148; for the purpose of Section&nbsp;18 of the Securities Exchange Act of
1934 (&#147;Act&#148;) or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act. </FONT></P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>(Continued on following
pages) </FONT></P>


<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 1 of 16 Pages </FONT></P>
<PAGE>
<BR>


<TABLE CELLPADDING=5 CELLSPACING=0 BORDER=0 WIDTH=100%>
<TR>
<TD WIDTH=33%><HR SIZE=2 NOSHADE></TD>
<TD WIDTH=34%>&nbsp;&nbsp;</TD>
<TD WIDTH=33%><HR SIZE=2 NOSHADE></TD>
</TR>
<TR>
<TD WIDTH=33% ALIGN=LEFT><B><FONT SIZE=3>CUSIP No.&nbsp;&nbsp;619908304&nbsp;&nbsp;</FONT></B></TD>
<TD WIDTH="34%" ALIGN="CENTER"><FONT SIZE="3"><B>13D</B> </FONT></TD>
<TD WIDTH=33% ALIGN=LEFT><FONT SIZE="3"><B>Page&nbsp;2&nbsp;
of&nbsp;16&nbsp;Pages</B> </FONT></TD>
</TR>
<TR>
<TD WIDTH=33%><HR SIZE=2 NOSHADE></TD>
<TD WIDTH=34%>&nbsp;&nbsp;</TD>
<TD WIDTH=33%><HR SIZE=2 NOSHADE></TD>
</TR>
</TABLE>


<TABLE CELLPADDING=5 CELLSPACING=0 BORDER=1 WIDTH=100%>
<TR VALIGN=TOP>
     <TD WIDTH=5% ALIGN=CENTER><B><FONT SIZE=+2>1</FONT></B></TD>
     <TD WIDTH=95%><FONT SIZE="2">NAME OF REPORTING PERSON<BR>
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON<BR><BR>
<B>BCE Inc.</B> </FONT> </TD>
</TR>
</TABLE>
<TABLE CELLPADDING=5 CELLSPACING=0 BORDER=1 WIDTH=100%>
<TR VALIGN=TOP>
     <TD WIDTH=5% ALIGN=CENTER><B><FONT SIZE=+2>2</FONT></B> </TD>
     <TD WIDTH=85%><FONT SIZE="2">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP </FONT></TD>
     <TD WIDTH=10% ALIGN=RIGHT><FONT SIZE="2"><B>(a)&nbsp;&nbsp;</B>[&nbsp;&nbsp;&nbsp;]<BR>
<B>(b)</B>&nbsp;&nbsp;[&nbsp;&nbsp;&nbsp;] </FONT></TD>
</TR>
</TABLE>
<TABLE CELLPADDING=5 CELLSPACING=0 BORDER=1 WIDTH=100%>
<TR VALIGN="TOP" BGCOLOR="#00FFFF">
     <TD WIDTH="5%" ALIGN="CENTER"><B><FONT SIZE=+2>3</FONT></B></TD>
     <TD WIDTH="95%"><FONT SIZE="2">SEC USE ONLY<BR> </FONT>
&nbsp;&nbsp;</TD>
</TR>
</TABLE>
<TABLE CELLPADDING=5 CELLSPACING=0 BORDER=1 WIDTH=100%>
<TR VALIGN=TOP>
     <TD WIDTH=5% ALIGN=CENTER><B><FONT SIZE=+2>4</FONT></B></TD>
     <TD WIDTH=95%><FONT SIZE="2">SOURCE OF FUNDS<BR><BR>
<B>OO</B> </FONT> </TD>
</TR>
</TABLE>
<TABLE CELLPADDING=5 CELLSPACING=0 BORDER=1 WIDTH=100%>
<TR VALIGN=TOP>
     <TD WIDTH=5% ALIGN=CENTER><B><FONT SIZE=+2>5</FONT></B> </TD>
     <TD WIDTH=85%><FONT SIZE="2">CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
PURSUANT TO ITEM 2(d) OR 2(e) </FONT></TD>
     <TD WIDTH=10% ALIGN=RIGHT><FONT SIZE="2">[&nbsp;&nbsp;&nbsp;] </FONT> </TD>
</TR>
</TABLE>
<TABLE CELLPADDING=5 CELLSPACING=0 BORDER=1 WIDTH=100%>
<TR VALIGN=TOP>
     <TD WIDTH=5% ALIGN=CENTER><B><FONT SIZE=+2>6</FONT></B></TD>
     <TD WIDTH=95%><FONT SIZE="2">CITIZENSHIP OR PLACE OF ORGANIZATION<BR><BR>
<B>Canada</B> </FONT></TD>
</TR>
</TABLE>

<TABLE CELLPADDING=5 CELLSPACING=0 BORDER=1 WIDTH=100%>
<TR>
     <TD ALIGN=CENTER WIDTH=15% ROWSPAN=4><FONT SIZE="2"><B>
NUMBER OF<BR>
SHARES<BR>
BENEFICIALLY<BR>
OWNED BY<BR>
EACH<BR>
REPORTING<BR>
PERSON<BR>
WITH</B> </FONT>
</TD>
     <TD WIDTH=5% VALIGN=TOP ALIGN=CENTER><B><FONT SIZE=+2>7</FONT></B></TD>
     <TD  WIDTH=80% VALIGN=TOP><FONT SIZE="2">SOLE VOTING POWER<BR>
<B>4,531,213</B> </FONT></TD>
</TR>
<TR>
     <TD WIDTH=5% VALIGN=TOP ALIGN=CENTER><B><FONT SIZE=+2>8</FONT></B></TD>
     <TD  WIDTH=80% VALIGN=TOP><FONT SIZE="2">SHARED VOTING POWER<BR>
<B>0</B> </FONT></TD>
</TR>
<TR>
     <TD WIDTH=5% VALIGN=TOP ALIGN=CENTER><B><FONT SIZE=+2>9</FONT></B></TD>
     <TD  WIDTH=80% VALIGN=TOP><FONT SIZE="2">SOLE DISPOSITIVE POWER<BR>
<B>4,531,213</B> </FONT></TD>
</TR>
<TR>
     <TD WIDTH=5% VALIGN=TOP ALIGN=CENTER><B><FONT SIZE=+2>10</FONT></B></TD>
     <TD  WIDTH=80% VALIGN=TOP><FONT SIZE="2">SHARED DISPOSITIVE POWER<BR>
<B>0</B> </FONT></TD>
</TR>
</TABLE>

<TABLE CELLPADDING=5 CELLSPACING=0 BORDER=1 WIDTH=100%>
<TR VALIGN=TOP>
     <TD WIDTH=5% ALIGN=CENTER><B><FONT SIZE=+2>11</FONT></B></TD>
     <TD WIDTH=95%><FONT SIZE="2">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<BR><BR>
<B>4,531,213</B> </FONT></TD>
</TR>
</TABLE>
<TABLE CELLPADDING=5 CELLSPACING=0 BORDER=1 WIDTH=100%>
<TR VALIGN=TOP>
     <TD WIDTH=5% ALIGN=CENTER><B><FONT SIZE=+2>12</FONT></B> </TD>
     <TD WIDTH=85%><FONT SIZE="2">CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
CERTAIN SHARES</FONT>
</TD>
     <TD WIDTH=15% ALIGN=RIGHT><FONT SIZE="2">[&nbsp;&nbsp;&nbsp;] </FONT> </TD>
</TR>
</TABLE>
<TABLE CELLPADDING=5 CELLSPACING=0 BORDER=1 WIDTH=100%>
<TR VALIGN=TOP>
     <TD WIDTH=5% ALIGN=CENTER><B><FONT SIZE=+2>13</FONT></B></TD>
     <TD WIDTH=95%><FONT SIZE="2">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)<BR><BR>
<B>6.5%</B> </FONT></TD>
</TR>
</TABLE>
<TABLE CELLPADDING=5 CELLSPACING=0 BORDER=1 WIDTH=100%>
<TR VALIGN=TOP>
     <TD WIDTH=5% ALIGN=CENTER><B><FONT SIZE=+2>14</FONT></B></TD>
     <TD WIDTH=95%><FONT SIZE="2">TYPE OF REPORTING PERSON<BR><BR>
<B>CO</B> </FONT></TD>
</TR>
</TABLE>
<BR>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 2 of 16 Pages </FONT></P>
<PAGE>
<BR>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>This
Amendment No. 2 hereby amends the Schedule 13D originally filed jointly on October 5, 2006
by BCE Inc. and various entities controlled by BCE Inc. Items 1 through 7 of that Schedule
13D are hereby amended and restated to read in their entirety as follows: </FONT></P>

<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">Item 1. <U>Security and
Issuer</U>. </FONT> </H1>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>This
statement on Schedule 13D relates to the shares of common stock, par value $0.01 per share
(&#147;Common Stock&#148;), of Motient Corporation, a Delaware corporation
(&#147;Motient&#148;). The principal executive offices of Motient are located at 300
Knightsbridge Parkway, Lincolnshire, IL 60069. </FONT></P>

<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">Item 2. <U>Identity and
Background</U>. </FONT> </H1>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>This
statement is being filed by BCE Inc. (&#147;BCE&#148;). </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>BCE
is a corporation organized under the laws of Canada. Its principal business is
communications. The address of its principal office is 1000, rue de la Gaucheti&egrave;re
Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec H3B 4Y7, Canada. </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Information
about the executive officers and directors of BCE is set forth in Schedule I hereto, which
is incorporated herein by reference. </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>During
the last five years, neither BCE nor, to the best of its knowledge, any of the persons
listed in Schedule I has been convicted in a criminal proceeding (excluding traffic
violations or similar misdemeanors) or has been a party to a civil proceeding of a
judicial or administrative body of competent jurisdiction as a result of which such person
was or is subject to a judgment, decree or final order enjoining future violations of, or
prohibiting or mandating activities subject to, federal or state securities laws or
finding any violation with respect to such laws. </FONT></P>

<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Item 3. <u>Source and
Amount of Funds or Other Consideration</u>. </FONT></H1>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>As
described in greater detail in response to Item 6 below, BCE entered into an exchange
agreement pursuant to which it acquired 9,031,213 shares of Common Stock of Motient (the
&#147;Initial Motient Shares&#148;) in exchange for the 5,073,715 shares of common stock
of TerreStar Networks Inc. and 1,887,133.89202 shares of common stock of TerreStar Global
Ltd. (formerly known as TerreStar Networks Bermuda Ltd.) that were owned by BCE
(collectively, the &#147;TerreStar Shares&#148;). </FONT></P>

<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Item 4. <u>Purpose of
Transaction</u>. </FONT></H1>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>As
described in greater detail in response to Item 6 below, BCE sold 4,500,000 of the Initial
Motient Shares on the date BCE exchanged its TerreStar Shares for the Initial Motient
Shares. BCE (a) acquired its remaining Initial Motient Shares (the &#147;Shares&#148;) for
investment purposes only, (b) expects to evaluate on an ongoing basis Motient&#146;s
financial condition, </FONT></P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 3 of 16 Pages </FONT></P>
<PAGE>
<BR>

<p style="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>business, operations and prospects, the market price of the Common
Stock, conditions in the securities markets generally, general economic and
industry conditions and other factors, (c) expects in particular to consider
reductions in its holdings of Shares as and when market conditions permit, (d)
may dispose of Shares from time to time in public or private transactions and
(e) may enter into privately negotiated derivative transactions with
institutional counterparties to hedge the market risk of some or all of its
positions in the Shares. BCE reserves the right to change its plans and
intentions at any time. </FONT></p>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Except
as set forth in this Item 4, BCE has no present plans or proposals that relate to or that
would result in any of the actions specified in clauses (a) through (j) of Schedule 13D. </FONT></P>

<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Item 5. <u>Interest in
Securities of the Issuer</u>.</FONT></H1>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>As
a result of the exchange described in Item 6 below pursuant to which BCE acquired the
Initial Motient Shares and the sale described in Item 6 below pursuant to which BCE sold
4,500,000 of the Initial Motient Shares, BCE now owns 4,531,213 shares of Motient Common
Stock. The Shares represent approximately 6.5% of the outstanding shares of Common Stock
of Motient, based on the 69,610,780 shares Motient reported as outstanding as of November
1, 2006 in its quarterly report on Form 10-Q for the period ended September 30, 2006. BCE
has the sole power to vote or direct the vote and the sole power to dispose or direct the
disposition of all such Shares. To the best of BCE&#146;s knowledge, none of the
persons named on Schedule I hereto beneficially own any shares of Common Stock. </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Except
as described in Item 6 below, BCE has not, and to the best of BCE&#146;s knowledge, none
of the other persons named on Schedule I hereto has, effected any transactions in the past
sixty days in the Common Stock<U>.</U> </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>No
other person has the right to receive or the power to direct the receipt of dividends
from, or the proceeds from the sale of, the Shares. </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>BCE
has not ceased to be the beneficial owner of more than five percent of the shares of
Common Stock. However, as a result of an assignment on January 5, 2007 described in Item 6
below, the other entities controlled by BCE that had been reporting persons under this
statement as in effect before Amendment No. 1 hereto (the &#147;Previous Reporting
Persons&#148;) have ceased to be beneficial owners of any shares of Common Stock. </FONT></P>

<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Item 6. <u>Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer</u>.</FONT></H1>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>On
June 22, 2006, TMI Communications Delaware, Limited Partnership, a limited partnership
that was at the time indirectly wholly owned by BCE (&#147;TMI Delaware&#148;), entered
into a letter agreement with Motient (the &#147;Letter Agreement&#148;) which gave TMI
Delaware the right, on the terms and subject to the conditions set forth therein, to enter
into an exchange agreement with Motient (the &#147;Exchange Agreement&#148;) pursuant to
which TMI Delaware would acquire the Initial Motient Shares in exchange for the TerreStar
Shares. On September 25, 2006, the last material condition to that right was satisfied,
and as a result as of September 25, 2006</FONT>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 4 of 16 Pages </FONT></P>
<PAGE>
<BR>


<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>BCE and the Previous Reporting Persons were
deemed to have acquired beneficial ownership of the Initial Motient Shares. </FONT></P>
<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>On
January 5, 2007, the TerreStar Shares were transferred in a series of steps to BCE and TMI
Delaware assigned its rights and obligations under the Letter Agreement to BCE. </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>On
January 15, BCE exercised its right to require Motient to enter into the Exchange
Agreement. The Exchange Agreement is substantially identical to the Exchange Agreements
among Motient, MVH Holdings Inc. (&#147;MVH&#148;) and various Columbia and Spectrum funds
(the &#147;Funds&#148;) dated as of May 6, 2006. </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>The
Exchange Agreement grants BCE the right to have an observer on the board of directors of
Motient and all committees of the board of Motient other than the compensation committee
and the audit committee. Those rights would terminate when (a) neither BCE nor an
affiliate of BCE remains the legal holder of the 2 Ghz Authorization referred to in the
Exchange Agreement and (b) BCE and its affiliates collectively no longer hold all of the
shares of common stock of TerreStar Networks Holdings (Canada), Inc. that they initially
receive when the 2 Ghz Authorization is transferred to TerreStar Canada as contemplated by
the Exchange Agreement. </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>In
connection with entering into the Exchange Agreement, BCE and Motient also entered into a
registration rights agreement (the &#147;Registration Rights Agreement&#148;). The
Registration Rights Agreement is substantially identical to the terms of the registration
rights agreements that Motient entered into with the Funds, except that BCE&#146;s
registration rights last longer. </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>On
March 7, 2007 BCE, Harbinger Capital Partners Master Fund I, Ltd. (&#147;Harbinger
Master&#148;), Harbinger Capital Partners Special Situations Fund, LP (&#147;Harbinger Special
Situations&#148;), Stanfield Offshore Leveraged Assets, Ltd. (&#147;Stanfield&#148; and,
together with Harbinger Master and Harbinger Special Situations, the &#147;Buyers&#148;), Motient,
MVH and BCE entered into a letter agreement (the &#147;Harbinger-Stanfield-Motient-BCE
Letter Agreement&#148;) pursuant to which (a) BCE, Motient and MVH agreed to close the
exchange contemplated by the Exchange Agreement on March 8, 2007 or as soon thereafter as
practicable and (b) each Buyer agreed to purchase from BCE, and BCE agreed to sell to such
Buyer, concurrently with the closing of the exchange under the Exchange Agreement, the
number of shares of Common Stock of Motient set forth opposite its name in the table below
for the aggregate purchase price set forth opposite its name in the table below (in each
case, equivalent to US$8.15 per share). </FONT></P>

<table width="760" border="0">
  <TR ALIGN="LEFT">
    <TH><u>Buyer</u></th>
    <TH><u># of Shares</u></th>
    <TH><u>Aggregate Purchase Price</u> </th>
  </tr>
  <tr>
    <td>Harbinger Master</td>
    <td>959,715 </td>
    <TD ALIGN="LEFT">US$7,821,677.25</td>
  </tr>
  <tr>
    <td>Harbinger Special Situations</td>
    <td>1,540,285</td>
    <TD ALIGN="LEFT">US$12,553,322.75</td>
  </tr>
  <tr>
    <td>Stanfield</td>
    <td>2,000,000</td>
    <TD ALIGN="LEFT">US$16,300,000.00</td>
  </tr>
</table>
<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em">&nbsp;</P>
<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>On
    March 8, 2007, BCE, Motient and MVH closed the exchange contemplated by the Exchange
    Agreement and the Buyers and BCE closed the purchases and sales referred to above. </FONT></P>
<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>The
descriptions of the Letter Agreement, Exchange Agreement, Registration Rights Agreement
and Harbinger-Stanfield-Motient-BCE Letter Agreement contained herein are qualified in
their entirety by reference to the executed Letter Agreement, Exchange Agreement,
</FONT></P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 5 of 16 Pages </FONT></P>
<PAGE>
<BR>


<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Registration Rights Agreement and Harbinger-Stanfield-Motient-BCE Letter Agreement, copies
    of which has been filed as Exhibits 2, 3, 4 and 5 hereto and are incorporated herein by
reference. </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Except
as described or incorporated by reference herein, there are no contracts, arrangements,
understandings or relationships (legal or otherwise) among BCE or, to its best knowledge,
any of the other persons named in Item 2 or between BCE or, to its best knowledge, any of
the other persons named in Item 2 and any other person with respect to any
securities of Motient, including but not limited to transfer or voting of any of the
securities, finder&#146;s fees, joint ventures, loan or option arrangements, puts or
calls, guarantees of profits, division of profits or loss or the giving or withholding of
proxies. </FONT></P>

<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Item 7.  <u>Material to be
filed as Exhibits</u>.</FONT></H1>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Exhibit
1 &#150; Joint Filing Agreement, dated October 5, 2006, among the Reporting Persons named
therein.* </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Exhibit
2 &#150; Letter Agreement, dated June 22, 2006, between TMI Communications Delaware,
Limited Partnership and Motient Corporation.* </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Exhibit
3 &#150; Exchange Agreement, dated as of January 15, 2007, among Motient Corporation, MVH
Holdings Inc. and BCE Inc.* </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Exhibit
4 &#150; Registration Rights Agreement, dated as of January 15, 2007, between BCE Inc. and
Motient Corporation.* </FONT></P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Exhibit
5 &#150; Letter Agreement, dated March 7, 2007, among BCE Inc., Harbinger Capital Partners
Master Fund I, Ltd., Harbinger Capital Partners Special Situations Fund, LP, Stanfield
Offshore Leveraged Assets, Ltd. Motient Corporation and MVH Holdings Inc. </FONT></P>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=3>_________________<br>
* previously filed </FONT></P>


<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 6 of 16 Pages </FONT></P>
<PAGE>
<BR>

<p align="center">Page 6 of 16 Pages </p>
<HR SIZE=5 COLOR=GRAY NOSHADE>




<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE="3">SCHEDULE I </FONT> </P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE="3">DIRECTORS AND EXECUTIVE
OFFICERS OF<br>
BCE INC. </FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=3>The
following sets forth the name, residence or business address, present principal occupation
or employment and citizenship of the directors and executive officers of BCE Inc.
(&#147;BCE&#148;). </FONT></P>

<table cellspacing="5" cellpadding="0">
  <tr>
    <th width="144" valign="top"><p align="left"><FONT SIZE="2"><U><STRONG>Name</STRONG></U> </FONT> </p></th>
    <th width="216" valign="top"><p align="left"><FONT SIZE="2"><U><STRONG>Residence or Business Address</STRONG></U> </FONT> </p></th>
    <th width="210" valign="top"><p align="left"><FONT SIZE="2"><STRONG>Principal Occupation or<br>
Employment (and address of<BR>corporation or other organization in<BR><u>which such employment is conducted)</U></STRONG> </FONT> </p>
    </th>
    <th width="78" valign="top"><p align="left"><FONT SIZE="2"><U><STRONG>Citizenship</STRONG></U> </FONT> </p></th>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">&nbsp; </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">&nbsp; </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">&nbsp; </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">&nbsp; </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2"><STRONG>Directors</STRONG> </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">&nbsp; </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">&nbsp; </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">&nbsp; </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Andr&eacute; B&eacute;rard </FONT> </p>
        <p><FONT SIZE="2">&nbsp; </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">600, de La Gaucheti&egrave;re W., 27<SUP>th </SUP>Floor <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 4L2 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Corporate Director, 600, de La Gaucheti&egrave;re W., 27<SUP>th </SUP>Floor, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4L2 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Ronald A. Brenneman </FONT> </p>
        <p><FONT SIZE="2">&nbsp; </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">150 &#150; 6th Avenue S.W., P.O. Box 2844 <br>
Calgary, Alberta, Canada T2P 3E3 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">President and Chief Executive Officer, Petro-Canada (petroleum company), 150 &#150; 6th Avenue S.W., P.O. Box 2844, Calgary, Alberta, Canada T2P 3E3 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Richard J. Currie </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">483 Bay Street, 7<SUP>th </SUP>Floor, North Tower <br>
Toronto, Ontario, Canada M5G 2C9 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Chair of the board, BCE and Bell Canada, 483 Bay Street, 7<SUP>th </SUP>Floor, North Tower, Toronto, Ontario, Canada M5G 2C9 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Anthony S. Fell </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">200 Bay Street, 3<SUP>rd </SUP>Floor, South Tower <br>
Toronto, Ontario, Canada M5J 2W7 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Chairman of the board, RBC Dominion Securities Limited (investment bank), 200 Bay Street, 3<SUP>rd </SUP>Floor, South Tower, Toronto, Ontario, Canada M5J 2W7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Donna Soble Kaufman </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">2 St. Clair Avenue East, Suite 800<br>
Toronto, Ontario, Canada M4T 2T5 </FONT> </p>
        <p><FONT SIZE="2">&nbsp; </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Corporate Director and Lawyer, 2 St. Clair Avenue East, Suite 800, Toronto, Ontario, Canada M4T 2T5 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Brian M. Levitt </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1000, de La Gaucheti&egrave;re W., 21<SUP>st </SUP>Floor <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 4W5 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Partner and Co-Chair, Osler, Hoskin &amp; Harcourt LLP (law firm), 1000, de La Gaucheti&egrave;re W., 21<SUP>st </SUP>Floor, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4W5 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">The Honourable Edward C. Lumley </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1 First Canadian Place, 4<SUP>th </SUP>Floor, P.O. Box 150 Toronto, Ontario, Canada M5X 1H3 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Vice-Chairman, BMO Nesbitt Burns Inc. (investment bank), 1 First Canadian Place, 4<SUP>th </SUP>Floor, P.O. Box 150, Toronto, Ontario, Canada M5X 1H3 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Judith Maxwell </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">305 Clemow Avenue<br>
Ottawa, Ontario, Canada K1S 2B7 </FONT> </p>
    </td>
    <td width="210" valign="top"><p><FONT SIZE="2">Research Fellow, Canadian Policy Research Networks, Inc.(non-profit organization conducting research on work, family, health, social policy and public involvement), 600-250 Albert St, Ottawa, Ontario, Canada K1P 6M1 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">John H. McArthur </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">Gallatin Hall C1-3D, Soldiers Field <br>
Boston, Massachusetts USA 02163 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Dean Emeritus, Harvard University Graduate School of Business Administration (university), Gallatin Hall C1-3D, Soldiers Field, Boston, Massachusetts, USA 02163 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
</table>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 7 of 16 Pages </FONT></P>
<PAGE>
<BR>


<table cellspacing="5" cellpadding="0">
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Thomas C. O'Neill </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">33 Geraldine Court<BR>
        Don Mills, Ontario, Canada M3A 1N2 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Corporate Director and Chartered Accountant, 33 Geraldine Court, Don Mills, Ontario, Canada M3A 1N2 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">James A. Pattison </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1067 West Cordova Street, Suite 1800 <br>
Vancouver, British Columbia, Canada V6C 1C7 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Chairman and Chief Executive Officer, The Jim Pattison Group (diversified consumer oriented company), 1067 West Cordova Street, Suite 1800, Vancouver, British Columbia, Canada V6C 1C7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Robert C. Pozen </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">500 Boylston Street<BR>
        Boston, Massachusetts USA 02116-3741 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Chairman of the board, MFS Investment Management (global investment manager), 500 Boylston Street, Boston, Massachusetts, USA 02116-3741 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">American </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Michael J. Sabia </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1000, de La Gaucheti&egrave;re W., 37<SUP>th </SUP>Floor <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">President and CEO of BCE and CEO of Bell Canada, 1000, rue de la Gaucheti&egrave;re Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Paul M. Tellier </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">935 de La Gaucheti&egrave;re W., 17<SUP>th </SUP>Floor <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 2M9 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Corporate Director, 935 de La Gaucheti&egrave;re W., 17<SUP>th </SUP>Floor, Montr&eacute;al, Qu&eacute;bec, Canada H3B 2M9 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Victor L. Young </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">9 Primrose Place<BR>
        St. John's, Newfoundland, Canada A1B 4H1 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Corporate Director, 9 Primrose Place, St. John's, Newfoundland, Canada A1B 4H1 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">&nbsp; </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">&nbsp; </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">&nbsp; </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">&nbsp; </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2"><STRONG>Executive Officers</STRONG> </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">&nbsp; </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">&nbsp; </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">&nbsp; </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Alain Bilodeau </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1000, de La Gaucheti&egrave;re W., 4<SUP>th </SUP>Floor <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Senior Vice-President and President, BCE Corporate Services of BCE, 1000, rue de la Gaucheti&egrave;re Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Michael T. Boychuk </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1000, de La Gaucheti&egrave;re W., 37<SUP>th </SUP>Floor <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Senior Vice-President and Treasurer of BCE, 1000, rue de la Gaucheti&egrave;re Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Karyn A. Brooks </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1000, de La Gaucheti&egrave;re W., 7<SUP>th </SUP>Floor <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Senior Vice-President and Controller of BCE, 1000, rue de la Gaucheti&egrave;re Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">William J. Fox </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1000, de La Gaucheti&egrave;re W., 37<SUP>th </SUP>Floor <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Executive Vice-President &#150; Communications and Corporate Development of BCE, 1000, rue de la Gaucheti&egrave;re Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Leo W. Houle </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1000, de La Gaucheti&egrave;re W., 37<SUP>th </SUP>Floor <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Chief Talent Officer of BCE, 1000, rue de la Gaucheti&egrave;re Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Lawson A.W. Hunter </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">110 O'Connor Street, 14<SUP>th </SUP>Floor <br>
Ottawa, Ontario, Canada K1P 1H1 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Executive Vice-President and Chief Corporate Officer of BCE, 1000, rue de la Gaucheti&egrave;re Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
</table>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 8 of 16 Pages </FONT></P>
<PAGE>
<BR>


<table cellspacing="5" cellpadding="0">
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Patricia A. Olah </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1000, de La Gaucheti&egrave;re W., 41<SUP>st </SUP>Floor <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Corporate Secretary and Lead Governance Counsel of BCE, 1000, rue de la Gaucheti&egrave;re Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">American </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Michael J. Sabia </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1000, de La Gaucheti&egrave;re W., 37<SUP>th </SUP>Floor <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">President and CEO of BCE and CEO of Bell Canada, 1000, rue de la Gaucheti&egrave;re Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">L. Scott Thomson </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1000, de la Gaucheti&egrave;re W., 37<SUP>th </SUP>Floor, <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Executive Vice-President-Corporate Development and Planning of BCE, 1000, rue de la Gaucheti&egrave;re Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Wayne L. Tunney </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1000, de la Gaucheti&egrave;re W., 37<SUP>th </SUP>Floor, <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Senior Vice-President &#150; Taxation of BCE, 1000, rue de la Gaucheti&egrave;re Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Martine Turcotte </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1000, de la Gaucheti&egrave;re W., 37<SUP>th </SUP>Floor, <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Chief Legal Officer of BCE, 1000, rue de la Gaucheti&egrave;re Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Siim A. Vanaselja </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">1000, de la Gaucheti&egrave;re W., 37<SUP>th </SUP>Floor, <br>
Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Chief Financial Officer of BCE, 1000, rue de la Gaucheti&egrave;re Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
  <tr>
    <td width="144" valign="top"><p><FONT SIZE="2">Nicholas Zelenczuk </FONT> </p></td>
    <td width="216" valign="top"><p><FONT SIZE="2">483 Bay Street, Floor 9S-Orange <br>
Toronto, Ontario, Canada M5G 2C9 </FONT> </p></td>
    <td width="210" valign="top"><p><FONT SIZE="2">Senior Vice-President &#150; Audit and Risk Management of BCE, 1000, rue de la Gaucheti&egrave;re Ouest, Bureau 3700, Montr&eacute;al, Qu&eacute;bec, Canada H3B 4Y7 </FONT> </p></td>
    <td width="78" valign="top"><p><FONT SIZE="2">Canadian </FONT> </p></td>
  </tr>
</table>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 9 of 16 Pages </FONT></P>
<PAGE>
<BR>



<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>SIGNATURES </FONT></H1>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>After
reasonable inquiry and to the best knowledge and belief of the undersigned, the
undersigned certifies that the information set forth in this statement is true, complete
and correct. </FONT></P>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Dated: March 8, 2007 </FONT></P>

<TABLE CELLPADDING=0 CELLSPACING=0 BORDER=0 width=100%>
<TR valign=top>
     <TD WIDTH=50%>&nbsp;&nbsp;</TD>
     <TD COLSPAN=3><FONT FACE="Times New Roman, Times, Serif" SIZE="2">BCE Inc.</FONT> <BR><BR><BR></TD>
</TR>
<TR valign=top>
     <TD WIDTH=50%>&nbsp;&nbsp; </TD>
     <TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE="2">By: </FONT> </TD>
     <TD COLSPAN=2><FONT FACE="Times New Roman, Times, Serif" SIZE="2">/s/ L. Scott Thomson</FONT> </TD>
</TR>
<TR valign=top>
     <TD WIDTH=50%>&nbsp;&nbsp; </TD>
     <TD WIDTH=5%>&nbsp;&nbsp; </TD>
     <TD COLSPAN=2><HR NOSHADE SIZE="1" WIDTH="80%" ALIGN="LEFT"> </TD>
</TR>
</TABLE>
<BR><BR>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 10 of 16 Pages </FONT></P>
<PAGE>
<BR>


<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>EXHIBIT INDEX </FONT></H1>

<TABLE BORDER="1" CELLPADDING="0" CELLSPACING="0" WIDTH="600">
  <tr>
    <TD WIDTH="128" VALIGN="TOP"><p><strong><u>Exhibit Number</u> </strong></p>
    </td>
    <TD WIDTH="67" VALIGN="TOP"><p><strong>&nbsp; </strong></p></td>
    <TD WIDTH="408" VALIGN="TOP"><p><strong><u>Description<br>
      <br>
      </u></strong></p></td>
  </tr>
  <tr>
    <td width="128" valign="top"><p align="center">1 </p></td>
    <td width="67" valign="top"><p>&nbsp; </p></td>
    <td width="408" valign="top"><p>Joint Filing Agreement, dated October 5, 2006, among the Reporting Persons named therein*<br>
      <br>
    </p>
    </td>
  </tr>
  <tr>
    <td width="128" valign="top"><p align="center">2 </p></td>
    <td width="67" valign="top"><p>&nbsp; </p></td>
    <td width="408" valign="top"><p>Letter Agreement, dated June 22, 2006, between TMI Communications Delaware, Limited Partnership and Motient Corporation*<br>
      <br>
    </p>
    </td>
  </tr>
  <tr>
    <td width="128" valign="top"><p align="center">3 </p></td>
    <td width="67" valign="top"><p>&nbsp; </p></td>
    <td width="408" valign="top"><p>Exchange Agreement, dated as of January 15, 2007, among Motient Corporation, MVH Holdings Inc. and BCE Inc.*<br>
      <br>
    </p>
    </td>
  </tr>
  <tr>
    <td width="128" valign="top"><p align="center">4 </p></td>
    <td width="67" valign="top"><p>&nbsp; </p></td>
    <td width="408" valign="top"><p>Registration Rights Agreement, dated as of January 15, 2007, between BCE Inc. and Motient Corporation.*<br>
      <br>
    </p>
    </td>
  </tr>
  <tr>
    <td width="128" valign="top"><p align="center">5 </p></td>
    <td width="67" valign="top"><p>&nbsp; </p></td>
    <td width="408" valign="top"><p>Exhibit 5 &#150; Letter Agreement, dated March 7, 2007, among BCE Inc., Harbinger Capital Partners Master Fund I, Ltd., Harbinger Capital Partners Special Situations Fund, LP, Stanfield Offshore Leveraged Assets, Ltd. Motient Corporation and MVH Holdings Inc.<br>
      <br>
    </p>
    </td>
  </tr>
</table>

<P><FONT SIZE="3">
_________________<BR>
* previously filed </FONT></P>


<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 11 of 16 Pages </FONT></P>



</BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.5
<SEQUENCE>2
<FILENAME>ex_5.htm
<DESCRIPTION>EXHIBIT 5 -- LETTER AGREEMENT
<TEXT>
<HTML>
<HEAD>
<TITLE>
Exhibit 5
</TITLE>
</HEAD>
<BODY>

<P ALIGN=RIGHT><FONT FACE="Times New Roman, Times, Serif" SIZE="3"><U><B>EXHIBIT 5</B></U> </FONT> </P>

<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE="3">BCE Inc. </FONT> </H1>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:30.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">March
7, 2007 </FONT> </P>

<P>&nbsp;</P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">
To each of the entities listed below:<BR>
Harbinger Capital Partners Master Fund I, Ltd.<BR>
Harbinger Capital Partners Special Situations Fund, LP<BR>
Stanfield Offshore Leveraged Assets, Ltd.<BR>
Motient Corporation MVH Holdings Inc.</FONT> </P>

<P>&nbsp;</P>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">Ladies and Gentlemen: </FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:6.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">Harbinger
Capital Partners Master Fund I, Ltd. (&#147;<U><B>Harbinger Master</B></U>&#148;),
Harbinger Capital Partners Special Situations Fund, LP (&#147;<U><B>Harbinger Special
Situations</B></U>&#148;), Stanfield Offshore Leveraged Assets, Ltd.
<U><B>(&#147;Stanfield</B></U>&#148; and, together with Harbinger Master and
Harbinger Special Situations, the &#147;<U><B>Buyers</B></U>&#148;), Motient
Corporation (&#147;<U><B>Motient</B></U>&#148;), MVH Holdings Inc.
(&#147;<U><B>Sub</B></U>&#148;) and BCE Inc. (&#147;<U><B>BCE</B></U>&#148;)
have agreed and hereby confirm as follows: </FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:6.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">
(1)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<U><B>Waiver of Closing Conditions and Closing of Exchange</B></U>. BCE
hereby waives the closing conditions relating to the filing, delivery and
effectiveness of the registration statement required by the Exchange Agreement,
dated as of January 15, 2007 (the &#147;<U><B>Exchange
Agreement</B></U>&#148;), among Motient, Sub and BCE. BCE, Motient and
Sub each agree that all of the conditions to closing under the Exchange
Agreement other than those that by their nature cannot be satisfied except at
the closing have either been satisfied or waived. BCE, Motient and Sub agree to
cause the remaining conditions to closing under the Exchange Agreement (i.e.
delivery of opinions and closing certificates) to be satisfied (and to close the
exchange contemplated by the Exchange Agreement) on March 8, 2007 or as soon
thereafter as practicable. </FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:6.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">
(2)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<U><B>Consent to Transfer; Registration Rights Agreement</B></U>. Motient
hereby consents to the transfer of shares contemplated by (3) below. On the date
hereof, Motient and the Buyers are entering into a registration rights agreement
with respect to the shares the Buyers are acquiring as contemplated by (3) below
and other shares of Motient held by the Buyers. </FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:6.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">
(3)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<U><B>Sale of Shares</B></U>. Each Buyer agrees to purchase from BCE, and
BCE agrees to sell to such Buyer, concurrently with the closing of the exchange
under the Exchange Agreement, the number of shares of common stock of Motient
set forth opposite its name in the table below for the aggregate purchase price
set forth opposite its name in the table below (in each case, US$8.15 per
share), payable in cash by wire transfer of immediately available funds to the
account BCE specifies to such Buyer prior to the closing. </FONT> </P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 12 of 16 Pages </FONT></P>
<PAGE>
<BR>

<table width="760" border="0">
  <TR ALIGN="LEFT">
    <TH><u>Buyer</u></th>
    <TH><u># of Shares</u></th>
    <TH><u>Aggregate Purchase Price</u> </th>
  </tr>
  <tr>
    <td>Harbinger Master</td>
    <td>959,715 </td>
    <TD ALIGN="LEFT">US$7,821,677.25</td>
  </tr>
  <tr>
    <td>Harbinger Special Situations</td>
    <td>1,540,285</td>
    <TD ALIGN="LEFT">US$12,553,322.75</td>
  </tr>
  <tr>
    <td>Stanfield</td>
    <td>2,000,000</td>
    <TD ALIGN="LEFT">US$16,300,000.00</td>
  </tr>
</table>
<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em">&nbsp;</P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">Effective
as of the closing of those purchases and sales: </FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">
(a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Each Buyer gives the representations, warranties, acknowledgments and
understandings set forth in Annex A hereto, </FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">
(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
BCE represents and warrants to each Buyer that it has the corporate power and
authority to sell to such Buyer the shares then being sold to such Buyer and
that it is delivering good and valid title to such shares, free and clear of all
liens other than liens created by such Buyer and </FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:3.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">
(c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Motient and Sub, jointly and severally, hereby make the same representations and
warranties to each Buyer that they made to BCE in Article III of the Exchange
Agreement, except that for these purposes the representations and warranties
contained in Section 3.3 of the Exchange Agreement shall be deemed to be made
with respect to the registration rights agreement referred to in (2) above
rather than to the agreements referred to in such section. </FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">Motient
agrees that the legal opinion and compliance certificate referred to in Sections 6.3 and
6.5 of the Exchange Agreement shall be addressed to each Buyer as well as to BCE. </FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:6.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">
(4)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<U><B>Filing and Effectiveness of Resale Registration Statement</B></U>.
Motient agrees to file the resale registration statement contemplated by the
registration rights agreements it has with BCE and the Buyers as soon as
practicable after the date hereof, and to use commercially reasonable efforts to
cause that resale registration statement to become effective as soon as
practicable thereafter. The resale registration statement will name both BCE and
each Buyer as selling stockholders. </FONT> </P>

<P ALIGN=CENTER><FONT SIZE="3">*&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*</FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:6.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">No
party to this letter agreement shall be permitted to assign its rights and obligations
under this letter agreement without the written consent of the other parties. This letter
agreement shall be governed by and construed in accordance with the laws of the State of
New York without regard to the applicable principles of conflicts of law. This letter
agreement may be executed in any number of counterparts, each of which shall be deemed an
original but all of which together shall constitute one single instrument. Litigation
concerning any disputes arising under this letter agreement or the transactions
contemplated hereby may be brought only in state or federal courts located in The City of
New York. EACH PARTY HEREBY IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY
SUCH LITIGATION. </FONT> </P>


<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 13 of 16 Pages </FONT></P>
<PAGE>
<BR>



<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:6.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">If
the foregoing is in accordance with your understanding, please sign and return one
counterpart of this letter to us, whereupon this letter will become a binding agreement
among the parties that have executed it. </FONT> </P>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">Very truly yours, </FONT> </P>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">BCE INC. </FONT> </P>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">By:___________________________</FONT></P>
<BR>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">Accepted
and agreed to as of the date first above written: </FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">HARBINGER
CAPITAL PARTNERS MASTER FUND I, LTD. </FONT> </P>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">By: Harbinger Capital
Partners Offshore Manager, LLC, as Investment Manager </FONT> </P>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">By:___________________________ </FONT> </P>
<BR>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">HARBINGER CAPITAL
PARTNERS SPECIAL SITUATIONS FUND, LP </FONT> </P>

<FONT SIZE="3">By: Harbinger Capital Partners Special Situations GP, LLC, as general partner </FONT>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">By:___________________________ </FONT> </P>
<BR>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">STANFIELD
OFFSHORE LEVERAGED ASSETS, LTD. </FONT> </P>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">By:___________________________ </FONT> </P>
<BR>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">MOTIENT CORPORATION </FONT> </P>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">By:___________________________ </FONT> </P>
<BR>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">MVH HOLDINGS INC. </FONT> </P>

<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE="3">By:___________________________ </FONT> </P>


<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 14 of 16 Pages </FONT></P>
<PAGE>
<BR>




<P ALIGN=RIGHT><FONT FACE="Times New Roman, Times, Serif" SIZE="3"><U><B>Annex A</B></U> </FONT> </P>

<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE="3">Private Placement
Certifications </FONT> </H1>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">Each
of Harbinger Capital Partners Master Fund I, Ltd., Harbinger Capital Partners Special
Situations Fund, LP and Stanfield Offshore Leveraged Assets, Ltd. (each, a
&#147;<U><B>Buyer</B></U>&#148;) is making the representations, warranties,
acknowledgements and understandings with respect to itself set forth below in connection
with the letter agreement, dated March 7, 2007 (the
&#147;<U><B>Agreement</B></U>&#148;), among the Buyers, Motient Corporation
(&#147;<U><B>Motient</B></U>&#148;), MVH Holdings Inc.
(&#147;<U><B>Sub</B></U>&#148;) and BCE Inc.
(&#147;<U><B>BCE</B></U>&#148;). </FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:6.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">Each
Buyer hereby represents and warrants to Motient, Sub and BCE that: </FONT> </P>

     <TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0>
          <TR VALIGN=TOP>
          <TD ALIGN=RIGHT WIDTH=15%><FONT FACE="Times New Roman, Times, Serif" SIZE="3">(i) </FONT> </TD>
          <TD ALIGN=LEFT WIDTH=3%><FONT FACE="Times New Roman, Times, Serif" SIZE="3">&nbsp; </FONT> </TD>
          <TD WIDTH=82%><P ALIGN=LEFT>
<FONT FACE="Times New Roman, Times, Serif" SIZE="3">it is a &#147;qualified institutional buyer&#148; as defined in Rule&nbsp;144A
under the Securities Act of 1933, as amended (the &#147;<U><B>Securities
Act</B></U>&#148;); </FONT> </P></TD>
          </TR>
</TABLE>
<BR>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0>
          <TR VALIGN=TOP>
          <TD ALIGN=RIGHT WIDTH=15%><FONT FACE="Times New Roman, Times, Serif" SIZE="3">(ii) </FONT> </TD>
          <TD ALIGN=LEFT WIDTH=3%><FONT FACE="Times New Roman, Times, Serif" SIZE="3">&nbsp; </FONT> </TD>
          <TD WIDTH=82%><P ALIGN=LEFT>
<FONT FACE="Times New Roman, Times, Serif" SIZE="3">it has such knowledge and experience in financial and business matters such that
it is capable of evaluating the merits and risks of an investment in Motient
common stock; </FONT> </P></TD>
          </TR>
</TABLE>
<BR>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0>
          <TR VALIGN=TOP>
          <TD ALIGN=RIGHT WIDTH=15%><FONT FACE="Times New Roman, Times, Serif" SIZE="3">(iii) </FONT> </TD>
          <TD ALIGN=LEFT WIDTH=3%><FONT FACE="Times New Roman, Times, Serif" SIZE="3">&nbsp; </FONT> </TD>
          <TD WIDTH=82%><P ALIGN=LEFT>
<FONT FACE="Times New Roman, Times, Serif" SIZE="3">its financial condition is such that it is able to bear all of the risks of an
investment in Motient common stock; </FONT> </P></TD>
          </TR>
</TABLE>
<BR>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0>
          <TR VALIGN=TOP>
          <TD ALIGN=RIGHT WIDTH=15%><FONT FACE="Times New Roman, Times, Serif" SIZE="3">(iv) </FONT> </TD>
          <TD ALIGN=LEFT WIDTH=3%><FONT FACE="Times New Roman, Times, Serif" SIZE="3">&nbsp; </FONT> </TD>
          <TD WIDTH=82%><P ALIGN=LEFT>
<FONT FACE="Times New Roman, Times, Serif" SIZE="3">it is acquiring the Motient common stock for investment purposes for its own
account and not with a current view to reselling the common stock; and </FONT> </P></TD>
          </TR>
</TABLE>
<BR>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0>
          <TR VALIGN=TOP>
          <TD ALIGN=RIGHT WIDTH=15%><FONT FACE="Times New Roman, Times, Serif" SIZE="3">(iv) </FONT> </TD>
          <TD ALIGN=LEFT WIDTH=3%><FONT FACE="Times New Roman, Times, Serif" SIZE="3">&nbsp; </FONT> </TD>
          <TD WIDTH=82%><P ALIGN=LEFT>
<FONT FACE="Times New Roman, Times, Serif" SIZE="3">it has reviewed information regarding Motient and had the opportunity to ask
questions of and receive answers from Motient concerning Motient and its common
stock and to obtain from Motient any additional information necessary to make an
informed decision regarding an investment in Motient and its common stock. </FONT> </P></TD>
          </TR>
</TABLE>
<BR>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:6.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">Each
Buyer acknowledges that it has entered into the Agreement without relying on any
representation or warranty of Motient or any other person for purposes of making an
investment decision with respect to Motient common stock. </FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:6.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">Each
Buyer acknowledges that in connection with the sale of Motient common stock pursuant to
the Agreement BCE will not be providing any material regarding Motient. In addition, each
Buyer acknowledges that BCE makes no representation or warranty, expressed or implied, as
to the accuracy or completeness of any information publicly available with respect to, or
provided or to be provided to such Buyer by, Motient, and nothing contained herein or in
any documents provided to either Buyer in connection herewith shall be relied upon as a
promise or representation by BCE. </FONT> </P>

<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:6.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">Each
Buyer understands that the Motient common stock being purchased by it has not been
registered under the Securities Act on the ground that the sale provided for in the
Agreement is exempt from registration under the Securities Act pursuant to
Section&nbsp;4(2) thereunder, and that the reliance of Motient and BCE on such exemption
is predicated in part on such Buyer&#146;s representations, warranties, acknowledgements
and understandings set forth in this certificate. Each Buyer understands that the Motient
common stock being purchased under the Agreement constitutes restricted securities within
the meaning of Rule&nbsp;144 of the Securities Act, </FONT> </P>


<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 15 of 16 Pages </FONT></P>
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<P STYLE="margin-top:0px;margin-bottom:16px; text-indent:0.00em"><FONT FACE="Times New Roman, Times, Serif" SIZE="3">
that the common stock is not registered and must be held indefinitely unless it
is subsequently registered or an exemption from such registration is available
and that neither Motient nor BCE makes any representation in the Agreement as to
the availability of Rule 144 or any other exemption under the Securities Act for
the re-offer, resale, pledge or transfer of the common stock.
</FONT> </P>

<P>&nbsp;</P>

<P>&nbsp;</P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Page 16 of 16 Pages </FONT></P>

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