Press Release

June 19, 2001

Motient Network Wirelessly Enables IBM's Customer Service

IBM Printing Systems Division Equips 1,400 Customer Service Engineers with Enhanced Mobile Communications Resulting in Increased Productivity and Cost Savings

Reston, VA - Motient Corporation (NASDAQ: MTNT) today announced that IBM (NYSE: IBM)is deploying 1,400 of the palm-size RIM 857 Wireless Handhelds™ on the Motient network. The deployment of the 857s to their customer service engineers is a continuation of an eight-year relationship Motient has built with IBM across its many divisions, including Printing Systems. IBM continues to be one of Motient's largest and most strategic partners.

IBM has written its own software application for the RIM 857 that makes it possible to wirelessly accomplish a variety of tasks including the ability to receive service alerts, provide project status reports, file accounting reports throughout the day, and order parts while at a client site.

"Our business relies on being highly responsive to the needs of our customers," said Dennis Sundberg, Senior Program Manager of the IBM Printing Systems Division. "During the time I have worked with Motient we have never had a system failure. Motient has been rock solid for more than five years."

IBM's engineers will also be able to correspond with customers on their way to the service location. Through IBM's website, customers can find out which CE is en route to their location, and email him/her directly with requests or updates. This enables customers to alert CEs if they need to cancel their order or if the service need has become more critical. A type of "live chat" is then formed with the technician. Managers and select CE groups will have added ability to wirelessly email and receive pages.

"Over the years, IBM has found that our network exceeds all expectations and provides a level of reliability second to none," said Mike Fabbri, vice president of sales for Motient Corporation. "This network reliability coupled with our customer service has heavily contributed to the success of our long-term relationship with IBM, and continues to be a deciding factor when they review new solutions."

In addition to reliability, the Motient/IBM solution has reduced costs for the Printing Systems Division. Rather than updating laptops with expensive software, CEs are able to carry small, palm-sized units. The cost of call center support and cell phone usage also decreased because more correspondence is conducted wirelessly over the network and via the Web. "Because of the performance of the Motient network and the RIM 857s, IBM PSD has significantly enhanced the capabilities of its CEs to support their customers," continued IBM's Sundberg.

About IBM Printing Systems Division

IBM Printing Systems Company, based in Boulder, Colo., is a vertically integrated organization that specializes in print solutions for the enterprise. Its worldwide teams of sales and support specialists are dedicated to providing the solutions and support required by market segments including statement printing, direct mail, book printing, industrial, reprographics, distributed mission-critical and one-to-one marketing. The company's offerings include printers, printing software, consultation, systems integration, supplies and maintenance. In 1996, IBM entered the workgroup printer market, complementing its products in the high-end production printing and print-on-demand arena.

About Motient

Motient (www.motient.com) owns and operates an integrated terrestrial/satellite network and provides a wide range of two-way mobile and Internet communications services principally to business-to-business customers and enterprises. The company provides eLink^SM and BlackBerry™ by Motient two-way wireless email service to customers accessing email through corporate servers, Internet Service Provider (ISP) and Mail Service Provider (MSP) accounts, and paging network suppliers. Motient serves a variety of markets including mobile professionals, telemetry, transportation, field service, and nationwide voice dispatch offering coverage to all 50 states, Puerto Rico, the U.S. Virgin Islands, and thousands of miles of U.S. coastal waters.

eLink is a service mark and Motient is a trademark of Motient Corporation. The BlackBerry and RIM families of related marks, images and symbols are the exclusive properties of, and trademarks of Research In Motion Limited and are used by permission. "BlackBerry by Motient" - used by permission.

Factors that could cause actual results to differ materially from those in the forward-looking statements in this news release are described in Motient Corporation's registration statement on Form S-3 (File No. 333-42104) and in Motient's annual report on Form 10-K for the year ended December 31, 2000 and its other periodic filings and reports with the Securities and Exchange Commission. Copies of such reports and filings are available upon request from Motient's Investor Relations Department.