Press Release

November 30, 2005

Stay in the Know with U.S. Cellular and BlackBerry

Chicago and Waterloo - U.S. Cellular today announced that it is working with Research In Motion (Nasdaq: RIMM; TSX: RIM) to bring BlackBerry® to its customers. U.S. Cellular will offer the BlackBerry 7250 Wireless Handheld™ with support for both BlackBerry Enterprise Server™ and BlackBerry Internet Service™.

U.S. Cellular customers will be able to access their e-mail on the same seamless, high-quality network that brings them voice services today. Customers will have access to a comprehensive mobile e-mail, voice, web browsing and data communications solution with advanced security and manageability.

“We are always searching for ways to help busy customers stay connected so that they can be more productive,” said Alan D. Ferber, vice president of marketing and sales operations for U.S. Cellular. “The BlackBerry wireless solution is proven and popular, particularly among business users. And by combining BlackBerry with U.S. Cellular’s powerful digital network and unparalleled voice services, we will provide our customers with a leading wireless solution for their mobile needs.”

“BlackBerry helps people manage their personal and professional lives more effectively by turning ‘idle time’ into productive time,” said Mark Guibert, Vice President, Corporate Marketing at Research In Motion. “We are very pleased to introduce the benefits of the BlackBerry solution to U.S. Cellular customers.”

The BlackBerry 7250 Wireless Handheld combines mobile text messaging and high-clarity voice calls, and gives users the ability to stay connected and remain productive in or out of the office. The device’s ergonomic design is highlighted by a large screen and full QWERTY keyboard. The 7250 also includes Bluetooth® technology, for use with wireless headsets and hands-free car kits.

For corporate customers, BlackBerry Enterprise Server tightly integrates with Microsoft® Exchange, Novell GroupWise™ and IBM Lotus® Domino™ and works with existing enterprise systems to enable secure, push-based, wireless access to e-mail and other corporate data.  For individuals and smaller businesses, BlackBerry Internet Service allows users to access up to ten supported corporate and personal email accounts (including Microsoft Exchange, IBM Lotus Domino, and most popular ISP email accounts) from a single device. 

 “The combination of voice, email and web technologies in a single device gives customers a powerful tool to stay connected all the time,” explained Ferber. “Whether sitting at the airport or at the soccer field, U.S. Cellular customers can now remain connected while on the go.”

BlackBerry from U.S. Cellular® will be available for $44.95 per month (email and web services only) or $39.95 per month (when combined with an eligible U.S. Cellular voice plan).

BlackBerry from U.S. Cellular is supported by the experience and service customers have come to expect from U.S. Cellular, including a new dedicated customer service troubleshooting line. For more information on U.S. Cellular’s phones, plans and accessories, visit www.uscellular.com.

About U.S. Cellular

As of June 30, 2005 Chicago-based U.S. Cellular Corporation (AMEX: USM), the nation’s sixth-largest wireless service carrier, provided service to more than 5.2 million customers in 25 states. With 2004 service revenues of $2.64 billion, U.S. Cellular maintains one of the industry’s highest levels of customer satisfaction by emphasizing customer support, quality network coverage and a comprehensive range of wireless products and services. The company is an active corporate citizen through charitable contributions, award-winning community relations programs and associate volunteer activities. For more information, visit www.uscellular.com.

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 to data. 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.

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. When used herein, words such as "intend" and similar expressions are intended to identify forward-looking statements. Forward-looking statements are based on assumptions made by and information available to Research In Motion Limited. Investors are cautioned that such forward-looking statements involve risks and uncertainties. Important factors that could cause actual results to differ materially from those expressed or implied by such forward looking statements include, without limitation, possible product defects and product liability, risks related to international sales and potential foreign currency exchange fluctuations, the initiation or outcome of litigation, acts or potential acts of terrorism, international conflicts, significant fluctuations of quarterly operating results, changes in Canadian and foreign laws and regulations, continued acceptance of RIM's products, increased levels of competition, technological changes and the successful development of new products, dependence on third-party networks to provide services, dependence on intellectual property rights and other risks and factors detailed from time to time in RIM's periodic reports filed with the United States Securities and Exchange Commission, and other regulatory authorities. The Company has no intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. 

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.

U.S. Cellular is a registered trademark, of U.S. Cellular Corporation.