I just started subscribing to xm radio and love it. I am also a napster subscriber. I am one of those type of people that can't get enough music in their life. I listen to xm radio on the net through my napster service. A feature I wish theat they had was the ability to listen to playlists that are in napster on my xm radio in my truck. This way I could create playlists and when I am traveling just punch them up instead of carrying them in a mps player.