The stream is really at the center of the service's functionality, and as such, it's not as full featured as a Spotify or a Rhapsody, and certainly making playlists of every track isn't quite as user friendly as listening to full artist for album playlists on those all you can eat services.

ENGADGET: Whyd mines YouTube, Soundcloud and others for songs Spotify can't deliver (hands-on)

It also lured customers by giving them the ability to customise their playlists, and by pricing songs bought from its iTunes online store at a not-too-steep 99 cents apiece.

ECONOMIST: The race to catch the iPod | The