Siri has a spare sat. xm does not .
I bought siri at $3 and sold at 7 . its a see saw stock.
buy now and wait for stearn hype in 06.
otherwise, I like the stock. And it isn't a matter of which one, because I think both will be here for the long haul. THere's enough of a market for both, although I don't see a point anytime soon when anyone will want both.
TS