PocketTunes?
 

I have the latest registered version of PocketTunes (4.1 I believe). For the most part it works well. I mainly listen to some local talk radio with it and will pause it when I'm done, but don't close the app. Well sometimes an hour or two later it will just start playing again on its own!

Also, on my Treo 800w there was a very convenient way to pause it with the side button. Any idea if there's a way to do this with a button on the TP?