I have bought two songs thus far with the amazon mp3 app and had a problem with the second one I downloaded. After purchasing it, it downloaded itself but did not show up in the music app to be played. This was very frustrating because I wanted to listen to that particular song right then, that i why i downloaded it on the fly. Anywho I eventually made it back home an dplugged in my phone to the computer and after that it seemed the music app was able to see the song. Any one know what is going on here?