David Pogue of The New York Times covers the current state of satellite radio. What is most interesting is the gap in customers between XM and Sirius. “XM now has over a million subscribers; Sirius has 200,000.” I remember reading that 2 million users is the break-even point for both companies. I listen mostly to NPR while I drive. I am not convinced that satellite radio could outperform a MP3 player hooked up to my stereo system.