If there’s ever been an iPhone app that runs a good chance of being blocked at the point of entry, it’s this. Real has just submitted its Rhapsody app to the App Store for approval, and if it passes, it’ll bring an all new source of music to iPhone users everywhere. In fact, it’ll be the “fully on-demand subscription music library app on the iPhone,” but of course, one could easily argue that this functionality is already available through the iTunes app. Particularly if you’re getting your checks from Apple.