SYDNEY, AUSTRALIA and WATERLOO, ONTARIO -- (MARKET WIRE) -- 08/15/06 -- Optus and Research In Motion (RIM) (NASDAQ: RIMM)(TSX: RIM) have announced the UMTS-enabled BlackBerry® 8707g(TM) for customers in Australia.

The BlackBerry 8707g features popular and proven BlackBerry functionality including support for "push" email, phone, text messaging, organizer, browser and other corporate data applications. The handset can be also used as a tethered modem, providing customers with the ability to access the Internet from their laptops.

Together with Optus' UMTS network, the BlackBerry 8707g allows users to simultaneously send and receive email, browse the Internet and use other applications while speaking on the phone, even while the handset is being used as a tethered modem.

Featuring a full QWERTY keyboard, the BlackBerry 8707g operates on 2100 MHz UMTS networks and also includes quad-band support on 850/900/1800/1900 MHz GSM/GPRS networks. The handset features 64 MB flash memory and supports attachment viewing of popular file formats (including JPEG, BMP, TIFF, Microsoft® Word, Excel and PowerPoint®, Corel® WordPerfect® and Adobe® PDF).

The high resolution QVGA (320x240) LCD display on the BlackBerry 8707g supports more than 65,000 colors and it incorporates intelligent light sensing technology that automatically adjusts the display and keyboard brightness to optimize visibility in outdoor, indoor and dark environments.

The BlackBerry 8707g features a built-in speakerphone and Bluetooth® support, dedicated "send," "end" and "mute" keys, as well as intuitive call management features such as smart dialling, conference calling, speed dial and call forwarding.

For corporate customers, BlackBerry Enterprise Server(TM) software tightly integrates with Microsoft® Exchange, IBM Lotus® Domino® and Novell® GroupWise® and works with existing enterprise systems to enable secure, push-based wireless access to email and other corporate data.

For individuals and smaller businesses, BlackBerry Internet Service(TM) allows users to access up to ten corporate and personal email accounts (including Microsoft Exchange, IBM Lotus Domino and most popular ISP email accounts) from a single handset.

About Optus

Optus is an Australian leader in integrated telecommunications, delivering cutting-edge communications, information technology and entertainment services. In 2001 SingTel became the parent company of Optus, paving the way to become a strong and strategic telecommunications player within the Asia-Pacific region.

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(TM) 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. RIM assumes no liability and makes no representation, warranty or guarantee in relation to third party products or services.

Contacts:
Media Contact:
Marisa Conway
Brodeur for RIM
(212) 771-3639
mconway@brodeur.com

Investor Contact:
RIM Investor Relations
(519) 888-7465
investor_relations@rim.com