<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5

<S>                                     <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                                    6-MOS                   6-MOS                   3-MOS                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-2000             DEC-31-1999             DEC-31-2000             DEC-31-1999
<PERIOD-START>                             JAN-01-2000             JAN-01-1999             APR-01-2000             APR-01-1999
<PERIOD-END>                               JUN-30-2000             JUN-30-1999             JUN-30-2000             JUN-30-1999
<CASH>                                     550,419,000              87,583,000             550,419,000              87,583,000
<SECURITIES>                                78,254,000                       0              78,254,000                       0
<RECEIVABLES>                                6,647,000               5,496,000               6,647,000               5,496,000
<ALLOWANCES>                                         0                       0                       0                       0
<INVENTORY>                                          0                       0                       0                       0
<CURRENT-ASSETS>                           662,629,000              94,189,000             662,629,000              94,189,000
<PP&E>                                     191,504,000              29,578,000             191,504,000              29,578,000
<DEPRECIATION>                            (10,878,000)               (399,000)            (10,878,000)               (399,000)
<TOTAL-ASSETS>                             868,480,000             131,386,000             868,480,000             131,386,000
<CURRENT-LIABILITIES>                       93,018,000              16,951,000              93,018,000              16,951,000
<BONDS>                                    275,071,000              77,006,000             275,071,000              77,006,000
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<COMMON>                                    15,741,000                348,0000              15,741,000                 348,000
<OTHER-SE>                                 484,650,000              37,081,000             484,650,000              37,081,000
<TOTAL-LIABILITY-AND-EQUITY>               868,480,000             131,386,000             868,480,000             131,386,000
<SALES>                                      8,466,000                 295,000               5,494,000                 295,000
<TOTAL-REVENUES>                             8,466,000                 295,000               5,494,000                 295,000
<CGS>                                        8,562,000                 521,000               5,551,000                 402,000
<TOTAL-COSTS>                              116,492,000              12,559,000              25,631,000               7,976,000
<OTHER-EXPENSES>                            18,451,000                 246,000              10,508,000                 246,000
<LOSS-PROVISION>                                     0                       0                       0                       0
<INTEREST-EXPENSE>                           8,512,000               3,896,000               6,644,000               2,726,000
<INCOME-PRETAX>                          (125,430,000)            (14,941,000)            (28,174,000)             (9,688,000)
<INCOME-TAX>                                         0                       0                       0                       0
<INCOME-CONTINUING>                      (125,430,000)            (14,941,000)            (28,174,000)             (9,688,000)
<DISCONTINUED>                                       0                       0                       0                       0
<EXTRAORDINARY>                              1,053,000                       0               1,053,000                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                             (124,377,000)            (14,941,000)            (27,121,000)             (9,688,000)
<EPS-BASIC>                                     (0.88)                  (0.16)                  (0.17)                  (0.09)
<EPS-DILUTED>                                   (0.88)                  (0.16)                  (0.17)                  (0.09)


</TABLE>