One of my friends developed this interesting app. It's hybrid of mp3 player and built-in sns function. It's got essential mp3 player but you can actually see what your friends/other people are listening to. Also, it's got the BestFan system like "Foursquare"'s mayor system where you can claimed the artist or song if you listen enough time to the song/artist. You can also leave comment associate with the song and share it through facebook. Enough said, please try this and tell me what you think about it. I will forward the feedback to my friend.