OmniSky to Introduce Wireless E-Mail and Internet Service for the Casio E-125 Cassiopeia

Business Wire, May 9, 2001

Business Editors/High-Tech Writers

SAN FRANCISCO--(BUSINESS WIRE)--May 9, 2001

OmniSky Continues Momentum on Pocket PC Platform with Beta Program on

the E-125 Cassiopeia and Enfora's PocketSpider

OmniSky Corporation (Nasdaq:OMNY), the innovative provider of award-winning wireless applications and services, today continued its momentum on Pocket PC devices with the announcement of a beta program for the Casio E-125 Cassiopeia and Enfora's PocketSpider.

The OmniSky service will provide one of the richest and most complete content offerings available from a wireless service for the Pocket PC platform because of its support of a wide variety of content protocols, including PQAs (Palm Query Applications), Mobile Favorites, and other HTML content. The company plans to make its service widely available for the Cassiopeia Pocket PC in summer of 2001. OmniSky expects to support additional Casio devices in the future.

"OmniSky's expansion to the E-125 Cassiopeia further demonstrates the company's strong support for the Pocket PC platform and the dynamic user experience that it allows," said Patrick McVeigh, chairman and CEO for OmniSky. "We strive to deliver the best-possible experience across multiple devices and platforms, while maximizing the advantages and capabilities of each platform."

Taking advantage of the processing power and easy portability of the E-125 Cassiopeia, users can access six e-mail accounts, including POP3 and Microsoft Outlook e-mail behind the firewall, with proprietary compression for faster e-mail download speeds. Used in conjunction with Enfora's PocketSpider modem, the OmniSky wireless service installs in just minutes, and offers a wide selection of Web sites optimized for Pocket PC. Further, users can deploy the familiar Pocket IE browser to easily surf to practically any Web site, including rich media and Flash sites, and they can easily save addresses, directions and other Web information directly to calendar, contacts or notes.

"The OmniSky service on the E-125 Cassiopeia is a powerful tool for mobile professionals," said Todd Weissman, vice president of Casio's Mobile Information Products Division. "It provides incredibly convenient wireless access to e-mail and the Web, and looks fantastic in Cassiopeia's brilliant color."

Added Mark Weinzierl, president and CEO of Enfora, "We're delighted that OmniSky will be offering its award-winning wireless service on our new PocketSpider modem, the first wireless IP (CDPD) modem designed exclusively for a compact Flash slot."

"The combination of OmniSky's service on the E-125 Cassiopeia means Pocket PC users can be mobile, gaining secure, consistent and easy-to-use access to the corporate applications they need," said Rogers Weed, general manager of the Mobile Devices Division at Microsoft Corp. "Because the Pocket PC platform offers the power to perform operations such as accessing the Internet in full color and reading Word and Excel attachments in e-mail, users can be truly productive wherever they are."

About Casio

Casio, Inc., Dover, N.J., is the U.S. subsidiary of Casio Computer Co., Ltd., Tokyo. Casio, Inc., with almost half a billion in sales, markets calculators, business organizers, handheld personal computers, keyboards, digital cameras, portable color TVs, timepieces (Wrist Technology), cash registers and other consumer electronic products. Casio and CASSIOPEIA are registered trademarks of Casio Computer Co., Ltd.

About OmniSky

OmniSky (Nasdaq:OMNY) is a leading global provider of wireless applications and services for users of mobile devices. OmniSky's award-winning service offers mobile professionals access to up to six e-mail accounts, including corporate e-mail via Microsoft Outlook as well as POP3 e-mail, the ability to search and surf the Internet, a broad range of optimized Web content, and the ability to securely conduct e-commerce transactions. The OmniSky service is available on the Palm V and Palm Vx, Handspring Visor Platinum, Visor Prism and Visor Edge, HP Jornada 520/540 Series Pocket PCs and the Compaq iPAQ Pocket PC, and can be purchased online or in over 1,500 retail outlets across the U.S. Service coverage includes over 167 major metropolitan areas within the United States, encompassing over 172 million people. Through a joint venture with News Corporation, OmniSky now offers its wireless service through U.K. and German beta programs and has plans to expand into additional international markets this year.

OmniSky is headquartered in San Francisco. For more information visit www.omnisky.com or call 415/764-2200.

The foregoing information contains forward-looking statements that are based on OmniSky's current expectations. These expectations are subject to risks, uncertainties and other factors that could cause OmniSky's actual results to differ materially from those referred to in these forward-looking statements. Factors that could cause OmniSky's actual results to differ include, but are not limited to, risks related to: market acceptance of an early stage service such as OmniSky's; delays in the development or introduction of new versions of OmniSky's service; technical difficulties with networks or operating systems on which OmniSky relies to deliver its service; changes in technologies that affect the wireless, Internet or handheld mobile device industries; the ability of an early stage company such as OmniSky to manage its growth; the protection of OmniSky's proprietary information; release of competitive products and services; and general economic downturns. These and other risks are more fully described in OmniSky's periodic reports and registration statements filed with the Securities and Exchange Commission and can be obtained online at the Commission's web site at http://www.sec.gov. Readers should consider the information contained in this release together with other publicly available information about OmniSky for a more informed overview of the company.