1st Apologize if its been covered (please link to a thread) 2nd Not trolling, just want to know if its usage is real and widespread. I have never seen it advertised at retail or know anyone who has actually used it. 3rd I've seen that Samsung GS III commercial many times but I don't understand. When those guys share a playlist, are they sharing a list of songs, or some type of playlist file. Or are they actually exchanging music files, which many consumers assume, but would be illegal. Is it like the Zune squirt, where you can share a music file with a friend and they can listen to it 3 times? Anyway I'd appreciate any factual answers.