For the first quarter 2006, XM Satellite Radio reported revenue of $208 million, an increase of over 100% from the $103 million reported in first quarter 2005. XM's subscriber acquisition cost (SAC) fell sharply from the fourth quarter to $62, higher than the $52 it posted one year ago, but down from $89 in the fourth quarter of 2005.

Cost per gross addition (CPGA) was $94 compared with $90 in the year ago period, but was off from $141 in the fourth quarter of last year.

In all, XM's total cost of revenue rose 74 percent in the quarter.