FORM 6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16 under

the Securities Exchange Act of 1934

For the month of	December		2007
Research In Motion Limited
(Translation of registrant’s name into English)
295 Phillip Street, Waterloo, Ontario, Canada N2L 3W8
(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40F.

Form 20-F Form 40-F X

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes No X

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b) : 82-_______________

DOCUMENT INDEX

Document		Page No.
1.	RIM to Announce Third Quarter Results on December 20	1

Document 1

December 6, 2007

FOR IMMEDIATE RELEASE

RIM to Announce Third Quarter Results on December 20

Waterloo, ON – Research In Motion Limited (RIM) (Nasdaq: RIMM; TSX: RIM) will be reporting results for the third quarter of fiscal 2008 on December 20, 2007 after the close of the market.  A conference call and live webcast will be held beginning at 5 pm ET, which can be accessed by logging on at www.rim.com/investors/events/index.shtml or by dialing 416-640-1907. A replay of the conference call will be available at www.rim.com/investors/events/index.shtml  or by dialing 416-640-1917 and entering passcode 21221692#.  This replay will be available from approximately 7pm December 20, 2007 until midnight ET January 10, 2008. 

About Research In Motion (RIM)

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’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™ 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.

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Investor Contact:

RIM Investor Relations

519.888.7465

Investor_relations@rim.com

Research In Motion, RIM and BlackBerry are trademarks of Research In Motion Limited. Research In Motion and RIM are registered with the U.S. Patent and Trademark Office and may be pending or registered in other countries. All other brands, products and company names mentioned herein may be trademarks or registered trademarks of their respective holders.

SIGNATURES

Pursuant to the requirement 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.

				Research In Motion Limited
				(Registrant)
Date:		December 7, 2007		By:	/s/ Edel Ebbs
					(Signature)
					Edel Ebbs Vice President, Investor Relations