There are several good 3rd party players out there...I agree. I just started using the XM player and I like it much better than Sirius'.
I wish someone would create a 3 party player.
I am starting to get concerned that is a big "if and when".If and when starplayr gets back up and running. The windows version supports both XM and SIRIUS. I personally don't use the company versions and have always used a plug-in or 3rd party software.
I doubt we'll see this a very big priority right now.