Boards
Last.fm Xbox360 screenshots
looks all very snazzy, the thing that intrigues me most is that the appears to be a 'Start A Radio Party' option, does that mean you and your friends will be able to listen to the same thing at the same time, kinda novel but kinda awesome :D
http://gallery.thatvideogameblog.com/last-fm-on-xbox-360/last-fm-xbox_01.jpg.html