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SpotON app - Last.fm radio style app for people with Premium Spotify subscriptions
Seems pretty dope - love the look of the app and seems to work really well. I pay for both Last.fm and Spotify so that's nice. However, it's only LIKE last.fm and has no link to it which is annoying. No scrobbling from what I can see. :/
Still, nice idea - especially backed up with the Spotify catalogue.