EXHIBIT 23.3
CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS
We consent to the incorporation by reference in this registration statement on
Form S-8 of Motient Corporation of our report dated February 16, 2000, except
for Note 14 which is as of March 15, 2000, relating to the consolidated balance
sheets of XM Satellite Radio Holdings Inc. and subsidiaries (a development stage
company) as of December 31, 1998 and 1999 and the related consolidated
statements of operations, stockholders' equity (deficit) and cash flows for each
of the years in the three-year period ended December 31, 1999, and for the
period from December 15, 1992 (date of inception) to December 31, 1999 which
report appears in the Annual Report on Form 10-K of Motient Corporation dated
March 30, 2000.
Our report, dated February 16, 2000, except for Note 14 which is as of March 15,
2000, contains an explanatory paragraph that states that XM Satellite Radio
Holdings Inc. and subsidiaries (a development stage company) has not commenced
operations and is dependent upon additional debt or equity financings which
raises substantial doubt about its ability to continue as a going concern. The
consolidated financial statements do not include any adjustments that might
result from the outcome of that uncertainty.
/s/KPMG LLP
McLean, VA
June 30, 2000
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