I get every baseball game on my iphone with the mlb package. So no need for sat radio for that.
Can't you sub to Sirius/XM and get a player on your phone to stream the content? I guess only if you need Howard or Mad Dog.
Say what you will about the sat radio music content, the quality of their bitrate is for the birds. Radiotime on droid or iphone is many times better and real stations. Especially nice if you like local talk radio or just want to listen to bbc world service, etc.
I guess all of this helps if you have an unlimited data plan which is rare now as VZN has even let it be known that they plan to cap data usage.
+1 for grandfathered at*t iphone users.