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Nextel launches first ever push email service for Java based phones, using Visto mobile technologies

Reston, Va. and Redwood Shores, Calif. – May 23, 2005 – Nextel Communications Inc. (NASDAQ: NXTL) and Visto Corporation announced the launch of Mobile Email Enhanced, the first email service for Java-enabled mobile phones with full synchronisation and a PDA-like feel. Mobile Email Enhanced pairs ConstantSync™, Visto’s wireless synchronisation technology, with an on-the-phone application to provide real-time access to email, contact lists, and calendars.

Push email allows over-the-air email delivery to the phone without any interaction from the user. Nextel Mobile Email Enhanced works in tandem with Microsoft Outlook®, IBM® Lotus Notes® and most Internet email accounts such as EarthlinkSM and Yahoo! ®.

“With Nextel Mobile Email Enhanced, our customers can make more productive use of their time spent away from their desks or out of the office with easy access to business or personal email,” said Danny Bowman, Nextel vice president of wireless data services. “Mobile Email Enhanced is designed to give our customers the flexibility to customise a solution that best meets both their productivity needs and personal style. This service, powered by Visto, provides many of the benefits of a PDA in the comfortable form of a mobile phone.”

“Nextel has opened up mobile email to a broad market with this new product,” said Brian Bogosian, chairman, president and CEO of Visto Corporation. “Mobile Email Enhanced makes full-featured email available to every customer that wants improved productivity. Visto Mobile and ConstantSync technology enable Nextel to offer a powerful user experience with quick and secure access whether retrieving email from a corporate office or a personal account.”

Nextel Mobile Email Enhanced has been designed to satisfy the needs of IT Managers who require a “behind the firewall solution” and the small business owner for whom simple installation and ease of management are critical. Small business users can quickly download and install the Nextel Desktop Assistant without the need of an IT Department. Larger businesses and enterprises should use the Visto™ Mobile Enterprise Server (VMES) – Nextel is providing the server software at no charge to lower the total cost of ownership.

The service is available on all Java-based Nextel phones, including the recently released Motorola i605, i836, i355 and i275, and will be available for new phones as they launch. Mobile Email Enhanced is available with three productivity bundle options:

•       Premier Data Service Plan ($29.99/month) includes unlimited Mobile Email Enhanced service and unlimited data access, 120 multimedia messages, unlimited text messaging and wireless web browsing;

•       Enhanced Data Services Plan ($19.99/month) includes Mobile Email Enhanced service with 2MB of data access, 120 multimedia messages, unlimited text messaging and wireless web browsing;

•       Mobile Email Enhanced stand-alone service ($14.99/month) with 2MB of data access.

About Nextel Communications

Nextel Communications, a FORTUNE 200 company based in Reston, Va., is a leading provider of fully integrated wireless communications services and has built the largest guaranteed all-digital wireless network in the country covering thousands of communities across the United States. Today 95 percent of FORTUNE 500Ò companies are Nextel customers. Nextel and Nextel Partners, Inc. currently serve 297 of the top 300 U.S. markets where approximately 262 million people live or work. 

About Nextel Partners

Nextel Partners, Inc. (NASDAQ:NXTP), based in Kirkland, Wash., has exclusive rights to offer the same fully integrated, digital wireless communications services offered by Nextel Communications, Inc. (Nextel) in mid-sized and rural markets in 31 states where approximately 54 million people reside. To learn more about Nextel Partners, visit www.nextelpartners.com. 

About   Visto

Visto delivers the leading global platform for mobile operators to provide wireless push e-mail to the broadest set of mobile devices. Visto’s open solution enables e-mail for the mass market, targeting large enterprises, small businesses, mobile professionals and consumers.  The company’s patented Visto Mobile™ platform with ConstantSync™ technology works in real time with POP3, IMAP, Microsoft Exchange and Lotus Domino e-mail solutions for personal to enterprise use, providing maximum control and flexibility for the operator and choice for the customer. Established in 1996 and headquartered in Redwood Shores, California, with offices in Seattle, London, Rome, Paris, Toronto, Tokyo, Beijing and Tianjin, China, Visto is backed by Oak Investment Partners, Draper Fisher Jurvetson, VantagePoint Venture Partners, Meritech Capital Partners, Rustic Canyon Ventures, Allegis Capital and Blueprint Ventures. For more information, visit www.visto.com or e-mail sales@visto.com

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Nextel and other Nextel marks are service and trademarks of Nextel Communications, Inc. Visto Corporation, Visto, the Visto logo, Visto Mobile, ConstantSync and Constant Synchronization are either trademarks or registered trademarks of Visto Corporation. All third-party trademarks, trade names, or service marks are the property of their respective owners and are used only to refer to the goods or services identified by those third-party marks. Visto’s technology is protected by U.S. Patents 6,085,192; 5,968,131; 6,023,708; 5,961,590; 6,131,116; 6,151,606; 6,233,341; 6,131,096, 6,708,221 and 6,766,454 and 12 foreign patents. Other patents pending.

Nextel Communications Inc.

2001 Edmund Halley Drive

Reston, VA 20191

Visto Corporation

275 Shoreline Drive Suite 300

Redwood City, CA 94065

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