Press Release

January 29, 2002

AT&T Wireless and Research In Motion to Offer Integrated Wireless Device for Managing Email and Phone Calls

New GSM/GPRS BlackBerry handheld to operate on AT&T Wireless' high speed network

Redmond, WA and Waterloo, ON - AT&T Wireless [NYSE: AWE] and Research In Motion Limited (RIM) [Nasdaq: RIMM; TSE: RIM] today announced that their corporate customers will soon be able to manage their emails and their phone calls through one, easy-to-use device. Under terms of the agreement, AT&T Wireless will offer its corporate customers a new model of the popular BlackBerry Wireless Handheld™ that provides the ability to place phone calls over AT&T Wireless' advanced GSM/GPRS network. The new handheld will include an earpiece and microphone that easily attaches to the device for convenient, hands-free conversation.

AT&T Wireless' business customers will be able to use the new handhelds to access email behind their corporate firewalls using its high-speed GPRS data network, once they install BlackBerry Enterprise Server software on their network servers. BlackBerry™ has quickly become a popular way to access corporate email wirelessly in North America. Over 13,000 organizations across North America already use BlackBerry, and RIM recently began marketing BlackBerry to customers in Europe.

"Staying connected, and becoming more productive, are what our customers are telling us they need," said Andre Dahan, president of AT&T Wireless Mobile Multimedia Services. "Our ability to combine voice services and corporate email access on one device, while on-the-go, makes the BlackBerry solution a clear complement to our growing portfolio of wireless data solutions for the mobile professional."

"The new BlackBerry solution will demonstrate our resolve to maintain leadership and deliver advanced GSM/GPRS-based solutions for leading wireless carriers like AT&T Wireless," said Jim Balsillie, Chairman and Co-CEO at Research In Motion. "We are very pleased to announce this relationship with AT&T Wireless and we're confident that BlackBerry will be well received by their corporate customers."

Details of the supply agreement for BlackBerry Wireless Handhelds with associated software and service were not disclosed. Further information regarding the availability and pricing of BlackBerry for AT&T Wireless' GSM/GPRS network will be announced at a later date.

About AT&T Wireless

AT&T Wireless (NYSE: AWE) is the largest independently traded wireless carrier in the United States, following our split from AT&T on July 9, 2001. AT&T Wireless operates one of the largest digital wireless networks in North America. With more than 17.1 million subscribers, and full-year 2000 revenues exceeding $10.4 billion, AT&T Wireless is committed to being among the first to deliver the next generation of wireless products and services. Today, AT&T Wireless offers customers high-quality wireless voice and data communications services in the U.S. and internationally. AT&T Wireless Customer Advantage is the company's commitment to ensure that customers have the right equipment, the right calling plan, and the right customer services options - today and tomorrow. For more information, please visit us at www.attwireless.com.

About Research In Motion

Research In Motion Limited is a leading designer, manufacturer and marketer of innovative wireless solutions for the mobile communications market. Through development and integration of hardware, software and services, RIM provides solutions for seamless access to time-sensitive information including email, messaging, Internet and intranet-based applications. RIM technology also enables a broad array of third party developers and manufacturers around the world to enhance their products and services with wireless connectivity. RIM's portfolio of award-winning products includes the RIM Wireless Handheld™ product line, the BlackBerry™ wireless email solution, embedded radio-modems and software development tools. Founded in 1984 and based in Waterloo, Ontario RIM operates offices in Canada, the United States and England. RIM is listed on the Nasdaq Stock Market (Nasdaq: RIMM) and the Toronto Stock Exchange (TSE: RIM). For more information, visit www.rim.net. Investors may contact investor_relations@rim.net. Customers may contact info@rim.net.

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.

Forward-looking statements in this news release are made pursuant to the "safe harbor" provisions of the United States Private Securities Litigation Reform Act of 1995. Investors are cautioned that such forward-looking statements involve risks and uncertainties, including, without limitation, risks relating to possible product defects and product liability, risks related to international sales and potential foreign currency exchange fluctuations, continued acceptance of RIM's products, increased levels of competition, technological changes, dependence on intellectual property rights and other risks detailed from time to time in RIM's periodic reports filed with the United States Securities and Exchange Commission and other regulatory authorities.