"XM Satellite Radio is continuing to beef up its subscriber totals, most recently adding 640,000 in the second quarter. That addition brings the overall total to 4.4 million, and reflects a growing rate of increase. For the first quarter of this year, XM tacked on an additional 540,000, while 418,000 were added in the second quarter last year. 'In just one year, XM has more than doubled its subscriber base from 2.1 million in the second quarter of 2004 to over 4.4 million subscribers today,' said XM chief Hugh Panero."
That's impressive as anything I've heard. You can get people to pay for something they used to get for free.