<SUBMISSION>
<ACCESSION-NUMBER>0001070235-05-000137
<TYPE>6-K
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20051123
<FILING-DATE>20051125
<DATE-OF-FILING-DATE-CHANGE>20051123
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>RESEARCH IN MOTION LTD
<CIK>0001070235
<ASSIGNED-SIC>3661
<IRS-NUMBER>000000000
<FISCAL-YEAR-END>0228
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>6-K
<ACT>34
<FILE-NUMBER>000-29898
<FILM-NUMBER>051226093
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>295 PHILLIP ST
<STREET2>WATERLOO
<CITY>ONTARIO CANADA
<STATE>A6
<ZIP>00000
<PHONE>5198887465
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>295 PHILLIP STREET
<STREET2>WATERLOO, ONTARIO N2L 3W8
<CITY>ONTARIO
<STATE>A6
<ZIP>N2L 3W8
</MAIL-ADDRESS>
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<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>pr112305.htm
<DESCRIPTION>PR112305 - PREANNOUNCEMENT
<TEXT>
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     <!-- Control Number: PR112305                                                         -->
     <!-- Rev Number:     001                                                              -->
     <!-- Client Name:    Investor Relations                                               -->
     <!-- Project Name:   PR112305 - preannouncement                                       -->
     <!-- Firm Name:      Research In Motion                                               -->
     <TITLE>PR112305 - preannouncement</TITLE>
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<TD><div align="center"><font face="Times New Roman, Times, Serif" size=2><u><b>FORM
  6-K</b></u></font><BR><A NAME=A003></A></div><P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SECURITIES
AND EXCHANGE COMMISSION </FONT></P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Washington, D.C. 20549 </FONT></P>

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<A NAME=A005></A>
<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Report of Foreign
Private Issuer </FONT></P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Pursuant to Rule 13a-16
or 15d-16 of </FONT></P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>the Securities Exchange Act
of 1934 </FONT></P>
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</TD>
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<BR>
<p>&nbsp;</p>
<table width="600" border="0">
  <tr>
    <td width="230">For the month of</td>
    <td width="236"><b>November</b>
      <hr>
    </td>
    <td width="112"><b>2005</b>
      <hr>
    </td>
  </tr>
  <tr>
    <td width="230"><font face="Times New Roman, Times, Serif" size=2>Commission
      File Number</font></td>
    <td width="236"><b><font face="Times New Roman, Times, Serif" size=2>000-29898
      </font></b>
      <hr>
      <b><font face="Times New Roman, Times, Serif" size=2> </font></b></td>
    <td width="112">
      &nbsp;<hr>
    </td>
  </tr>
  <tr>
    <td colspan="3">
      <div align="center"> <font face="Times New Roman, Times, Serif" size=3><b>Research
        In Motion Limited</b> </font>
        <hr>
        (Translation of registrant&#146;s name into English)</div>
    </td>
  </tr>
  <tr>
    <td colspan="3">
      <div align="center">295 Phillip Street, <br>
        Waterloo, Ontario, Canada <br>
        N2L 3W8 </div>
    </td>
  </tr>
  <tr>
    <td colspan="3">
      <div align="center"><font face="Times New Roman, Times, Serif" size=2>(Address
        of principal executive offices) </font></div>
    </td>
  </tr>
</table>

<P>&nbsp;</P>

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<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indicate
by check mark whether the registrant files or will file annual reports under cover Form
20-F or Form 40F.  </FONT></TD></TR>
</TABLE>
<div align="center"><BR>
  <table width="427" border="0">
    <tr>
      <td width="200"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Form 20-F
        ___________</font></td>
      <td width="217"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Form 40-F_____<u>X</u>_______</font></td>
    </tr>
  </table>
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</div>
<br>
<TABLE WIDTH=600 CELLSPACING=0 CELLPADDING=0 BORDER=0>
<TR VALIGN=TOP>
<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indicate
by check mark         if the registrant is submitting the Form&nbsp;6-K in paper as
permitted         by Regulation&nbsp;S-T Rule&nbsp;101(b)(1):________________  </FONT></TD></TR>
</TABLE>
<BR>

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<TR VALIGN=TOP>
<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indicate
by check mark if   the registrant is submitting the Form&nbsp;6-K in paper as permitted
by Regulation&nbsp;S-T   Rule&nbsp;101(b)(7):________________  </FONT></TD></TR>
</TABLE>
<BR>

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<TABLE WIDTH=600 CELLSPACING=0 CELLPADDING=0 BORDER=0>
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<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indicate
by check mark whether by furnishing the information contained in this Form, the
registrant is also thereby furnishing the information to the Commission pursuant to Rule
12g3-2(b) under the Securities Exchange Act of 1934.  </FONT></TD></TR>
</TABLE>
<div align="center"><BR>
  <table width="441" border="0">
    <tr>
      <td> <FONT FACE="Times New Roman, Times, Serif" SIZE=2>Yes__________________</font></td>
      <td><FONT FACE="Times New Roman, Times, Serif" SIZE=2>No________<u>X</u>__________</font></td>
    </tr>
  </table>
  <br>
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<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If
"Yes" is marked, indicate below the file number assigned to the registrant   in
connection with Rule 12g3-2(b) : 82-_______________  </FONT></TD></TR>
</TABLE>
<BR>

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<TD>
<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=4>DOCUMENT INDEX </FONT></H1>
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<BR>
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<A NAME=A011></A>
<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><I>&nbsp;&nbsp;&nbsp;
  .</I> </FONT></P>

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    <TD ALIGN=RIGHT WIDTH=8%>
      <div align="center">
        <p><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Document</FONT></p>
        <p><FONT FACE="Times New Roman, Times, Serif" SIZE=2>1. </FONT></p><BR>
 </div>
    </TD>

    <TD ALIGN=LEFT WIDTH=81%>
      <p>&nbsp;</p>
      <p><FONT FACE="Times New Roman, Times, Serif" SIZE=2>News Release dated November 23, 2005
 (&#147;Research In Motion Provides Subscriber Update&quot;)</FONT></p>


    </TD>

    <TD WIDTH=11%>
      <P ALIGN=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2> Page
        No</FONT></P>
      <P ALIGN=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>2 </FONT></P><BR>


    </TD>
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                    <BR>


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<P ALIGN=RIGHT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Document 1 </FONT></P>
<HR SIZE=5 COLOR=GRAY NOSHADE>





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<P ALIGN=RIGHT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>November 23, 2005 </FONT></P>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=3>Research In Motion
Provides Subscriber Update </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Waterloo, ON</B> &#150; Research
In Motion Limited (RIM) (Nasdaq: RIMM; TSX: RIM) today provided an update on forecasted
subscriber additions for fiscal Q3 ending November 26, 2005 and fiscal Q4 ending March 4,
2006. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>RIM now expects subscriber additions
for Q3 to be within a range approximately 8% lower than the previously forecasted range of
680,000 &#151; 710,000 provided by RIM in September. The previous forecast range was based
on the expectation that two next-generation BlackBerry&reg; handsets would be launched and
commercially available in early November. The BlackBerry 8700 Series for EDGE networks and
the BlackBerry 7130 Series for EV-DO networks have been widely anticipated by customers;
but due to unanticipated launch delays, these new handsets have only become commercially
available through business channels this week, and national retail availability is now
expected in early December. As a result, many customers delayed purchases in anticipation
of the newer products. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>While subscriber additions for the
months of September and October were in the expected range, these launch delays caused
subscriber additions to be lower than expected during the month of November. Given the
shift in retail product availability into early December, RIM also believes it is prudent
to slightly lower its Q4 forecast range for subscriber additions of 775,000 &#151; 825,000
by approximately 3%. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>RIM continues to expect Q3 revenue in
the range of $540 &#151; $570 million and does not anticipate any material impact to
previous Q4 revenue guidance as a result of these lower levels of subscriber additions. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&#147;While the delay in launch dates
for these two highly anticipated products caused a timing shift in expected subscriber
additions, the products are becoming available now and will help drive significant growth
in the coming quarters,&#148; said Jim Balsillie, Chairman and Co-CEO at RIM. &#147;We
further entrenched our technology leadership and channel strength in the current quarter
and we have grown our subscriber base by over 17% to pass the 4 million subscribers
milestone. We intend to remain focused on executing our business plans as we aim to finish
our fiscal year by roughly doubling the BlackBerry subscriber base of the previous
year.&#148; </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>RIM will report actual Q3 subscriber
additions and financial results, and hold its quarterly results conference call, on
December 21, 2005. </FONT></P>

<!-- MARKER FORMAT-SHEET="Head Major Center Bold 1" FSL="Default" -->

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

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=3>About Research In Motion
(RIM) </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Research In Motion is a leading
designer, manufacturer and marketer of innovative wireless solutions for the worldwide
mobile communications market. Through the development of integrated hardware, software and
services that support multiple wireless network standards, RIM provides platforms and
solutions for seamless access to time-sensitive information including email, phone, SMS
messaging, Internet and intranet-based applications. RIM technology also enables a broad
array of third party developers and manufacturers to enhance their products and services
with wireless connectivity. RIM&#146;s portfolio of award-winning products, services and
embedded technologies are used by thousands of organizations around the world and include
the BlackBerry wireless platform, the RIM Wireless Handheld&#153; product line, software
development tools, radio-modems and software/hardware licensing agreements. Founded in
1984 and based in Waterloo, Ontario, RIM operates offices in North America, Europe and
Asia Pacific. RIM is listed on the Nasdaq Stock Market (Nasdaq: RIMM) and the Toronto
Stock Exchange (TSX: RIM). For more information, visit www.rim.com or www.blackberry.com. </FONT></P>

<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<B>Investor Contact:</B><BR>
RIM Investor Relations<BR>
519.888.7465<BR>
Investor_relations@rim.com<BR><BR>
</FONT></P>

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     <P ALIGN=CENTER>_________________ </P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>This news release contains
forward-looking statements within the meaning of the U.S. Private Securities Litigation
Reform Act of 1995 relating to RIM&#146;s expectations regarding subscriber additions and
revenue ranges for Q3 and Q4 of fiscal 2006, RIM&#146;s expectations regarding national
retail availability of its next-generation BlackBerry handsets and anticipated growth in
coming quarters. The terms and phrases &#147;expecting&#148;, &#147;expected&#148;,
&#147;forecast&#148;, &#147;intend&#148;, &#147;aim&#148;, &#147;anticipate&#148; and
&#147;will help drive&#148; and similar terms and phrases are intended to identify these
forward-looking statements. Forward-looking statements are based on estimates and
assumptions made by RIM in light of its experience and its perception of historical
trends, current conditions and expected future developments, as well as other factors that
RIM believes are appropriate in the circumstances. Many factors could cause RIM&#146;s
actual results, performance or achievements to differ materially from those expressed or
implied by the forward-looking statements, including, without limitation: risks relating
to RIM&#146;s intellectual property rights, including the outcome of RIM&#146;s litigation
with NTP, Inc.; RIM&#146;s ability to enhance current products and develop new products;
RIM&#146;s reliance on carrier partners, third-party network developers and suppliers; and
intense competition. These risk factors and others relating to RIM are discussed in
greater detail in the &#147;Risk Factors&#148; section of RIM&#146;s Annual Information
Form, which is included in its Annual Report on Form 40-F (copies of which filings may be
obtained at www.sedar.com or www.sec.gov). These factors should be considered carefully,
and readers should not place undue reliance on RIM&#146;s forward-looking statements. RIM
has no intention and undertakes no obligation to update or revise any forward-looking
statements, whether as a result of new information, future events or otherwise. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>The BlackBerry and RIM families of
related marks, images and symbols are the exclusive properties and trademarks of Research
In Motion Limited. RIM, Research In Motion and BlackBerry are registered with the U.S.
Patent and Trademark Office and may be pending or registered in other countries. All other
brands, product names, company names, trademarks and service marks are the properties of
their respective owners. </FONT></P>















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<TD><H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=4>SIGNATURES
</FONT></H1>
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<TD><P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
  to the requirements of the Securities Exchange Act of 1934, the registrant has   duly
caused this report to be signed on its behalf by the undersigned, thereunto   duly
authorized. </FONT></P><P>&nbsp;
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<BR>

<p></P><table width="600" border="0"><tr><td width="33">&nbsp;</td><td width="209">&nbsp;</td><td colspan="2"><div align="center"><b><font face="Times New Roman, Times, Serif" size=3>Research
        In Motion Limited </font></b></div><hr><div align="center">(Registrant) </div></td></tr><tr><td width="33">Date:</td><td width="209"><div align="center"><u>November 23, 2005</u></div></td><td width="59">By:</td><td width="271">/s/ Rob Duncan <hr><div align="center">(Signature)
</div></td></tr><tr><td width="33">&nbsp;</td><td width="209">&nbsp;</td><td width="59">&nbsp;</td><td width="271">Rob Duncan</td></tr><tr><td width="33">&nbsp;</td><td width="209">&nbsp;</td><td width="59">&nbsp;</td><td width="271">Vice President, Corporate Controller</td></tr></table>


<H1 ALIGN=CENTER>&nbsp;</H1>

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