Press Release

March 21, 2001

Skadden, Arps Goes Wireless With Motient's eLink Wireless Email Service

More Than 800 Lawyers Will Now Be Wirelessly Connected

Reston, VA - Motient Corporation (NASDAQ: MTNT), a leader in wireless data communications, will now provide its award-winning eLink^SM wireless email to the attorneys of Skadden, Arps, Slate, Meagher & Flom LLP and Affiliates. Motient's eLink service will be utilized by over 800 of the firm's attorneys in various offices throughout the United States.

eLink is an innovative wireless email solution, developed by Motient, that provides wireless access to virtually any email account, using a RIM Wireless Handheld™. The eLink service supports a number of email software applications and is one of the only wireless services that integrates with GroupWise, a popular messaging application among the legal community. eLink provides unparalleled nationwide connectivity in buildings and on the street, using the Motient network.

"Supplying our eLink service to Skadden, Arps, further strengthens our presence in the legal community," said Mike Fabbri, vice president of sales for Motient. "The legal market is a key target for our eLink service. It's a market that demands fast, reliable, secure and continuous communication."

"We chose Motient's network for its reliability and the broad wireless coverage that keeps our attorneys in touch with clients and colleagues at a level not possible before," said Harris Tilevitz, Director of Technology for Skadden, Arps. "The eLink service is one of the many emerging technologies we make available to our attorneys so that they can provide the quality and speed of service that our clients demand."

About Skadden, Arps, Slate, Meagher & Flom LLP and Affiliates

Skadden, Arps , Slate, Meagher & Flom LLP and Affiliates is an international law firm with more than 1,550 attorneys in 22 offices throughout the world. Skadden, Arps provides a broad range of legal services to the corporate, industrial and financial communities representing a broad spectrum of clients, from small high-technology start-up companies to nearly one half of the Fortune 250 industrial and service corporations, as well as many financial and governmental entities. Further information about Skadden, Arps is available at www.skadden.com.

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™ 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 hundreds of miles of U.S. coastal waters.

eLink is a service mark of Motient Corporation. RIM Wireless Handheld and BlackBerry are trademarks of Research In Motion Limited.

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, 1999 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 Corporation's Investor Relations Department.