This is potentially game-changing for mobile music. T-Mobile has added music-discovery functionality from Last.fm to its mobile jukebox service. The addition means that users of the service can simply put in an artist’s name, and they’ll receive a list of other musicians that they might like.

With each option presented, you’ll have the option to stream a 30 second preview (why not a full preview?) and then buy the track. Users will also get plenty of biographical info about the artist, thanks to a partnership with Wikipedia.