<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C> <C>
<PERIOD-TYPE> YEAR YEAR
<FISCAL-YEAR-END> SEP-30-1999 SEP-30-2000
<PERIOD-START> OCT-01-1998 OCT-01-1999
<PERIOD-END> SEP-30-1999 SEP-30-2000
<CASH> (43,315) (176,929)
<SECURITIES> (31,691) (413,671)
<RECEIVABLES> (3,557) (21,298)
<ALLOWANCES> (380) (2,329)
<INVENTORY> 0 (554)
<CURRENT-ASSETS> (81,151) (521,862)
<PP&E> (25,273) (166,766)
<DEPRECIATION> (4,192) (31,683)
<TOTAL-ASSETS> (107,648) (2,116,126)
<CURRENT-LIABILITIES> (21,645) (78,451)
<BONDS> 0 0
0 0
0 0
<COMMON> (156,827) (2,094,646)
<OTHER-SE> 4,547 9,724
<TOTAL-LIABILITY-AND-EQUITY> (107,648) (2,116,126)
<SALES> 0 0
<TOTAL-REVENUES> (12,431) (59,055)
<CGS> (29,496) (111,695)
<TOTAL-COSTS> (29,496) (111,695)
<OTHER-EXPENSES> (35,422) (289,794)
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 1,551 12,575
<INCOME-PRETAX> (50,936) (329,859)
<INCOME-TAX> (2) (16)
<INCOME-CONTINUING> (50,938) (329,875)
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (50,938) (329,875)
<EPS-BASIC> (4.58) (5.59)
<EPS-DILUTED> (4.58) (5.59)
</TABLE>