Hmmm... I believe SIRIUS is positioned far better than most think, and stock price is a poor indicator of a young company's performance. As for compatible units, pick up a Crutchfield catalog or just compare the line-up from BOTH XM and SIRIUS... It's about 50/50 on aftermarket equipment. SIRIUS also is releasing a tuner that will allow an XM compatible head unit to get SIRIUS, so ANY BRAND will work. Now that's saavy.

Both these companies are burning cash at an astronomical rate though. SIRIUS is really closing the gap in subscribership and has set themselves apart as the sports provider too. These two outfits will continue to distinguish themselves as individuals and should be able to share the available customer base. There can only be two satellite radio providers under the current FCC charter, and it's nice to be able to choose your flavor. SIRIUS is definitely set to springboard (Canada, sports, video, OEM deals) though whereas XM has some dark days (failing satellites, cash problems, investor pull-out) right around the corner. This next stage should set them more evenly on the market, hopefully set to prosper as equals.