Research In Motion Limited 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.

Headquartered in Waterloo, Ontario, RIM also operates with 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).

Alltel, headquarted in Little Rock, Arkansas, owns and operates the nation's largest wireless network. Alltel's wireless footprint covers over one-half of the total landmass of the continental United States. Alltel serves more thatn 10 million customers in 35 states.

Alltel continues to strengthen its position in the wireless marketplace with unique brand promises that include America's only network guarantee, anytime rate plan changes and My Circle.

Cingular Wireless is the second largest wireless company in the U.S. and is dedicated to providing customers with wireless technology designed to enrich their lives. A leader in mobile voice and data communications, Cingular is a wireless company determined to promote the individual to a new level and to create a personal relationship with each of its customers.

Headquartered in Atlanta, Georgia, Cingular Wireless serves more than 22 million voice and data customers across the United States. Cingular Wireless is a joint venture between the domestic wireless divisions of SBC (NYSE:SBC) and BellSouth (NYSE: BLS). SBC owns 60 percent of the company and BellSouth owns 40 percent, based on the value of the assets both contributed to the venture.

Sprint Nextel combines the best of two powerhouse wireless companies. The company operates a nationwide digital wireless network with more than 52 million subscribers.

Sprint Nextel offers a comprehensive range of communications services bringing mobility to consumer, business and government customers. Sprint Nextel is widely recognized for developing, engineering and deploying innovative technologies, including two robust wireless networks offering industry leading mobile data services; instant national and international walkie-talkie capabilities; and an award-winning and global Tier 1 Internet backbone.

Verizon Wireless is the nation's leading provider of wireless communications. The company has the largest nationwide wireless voice and data network and 39 million customers.

Headquartered in Bedminster, NJ, Verizon Wireless is a joint venture of Verizon Communications (NYSE:VZ) and Vodafone (NYSE and LSE: VOD).