The developers behind the Ubuntu One Music Store have put a FAQ online, which I’ve reproduced below. I’ve been beta testing the store out for a few days and have bought some singles and albums directly in Rhythmbox. In fact I think I was the first person to buy an album in the store :D It works really well, but clearly it’s not quite finished. There’s also a lot of rumour and misunderstanding around the store, so it’s great to see the developers putting this information out there.