Ok, I know that because of the App Store and SDK rules, you cannot create any app that plays with the MobileMusicPlayer. BUT. You can still access the Music. So why doesn't a Developer just create a Last.FM Application that plays the Music directly from your device and Scrobble it to Last.FM? It would be the Only running app, not requiring Background processes. Unless Apps stop when you lock the screen? Because whenever I lock the screen while playing Trism and Unlock it, it goes back to my Game on Trism.