I just started playing around with spotify and the one major feature missing is something akin to itunes genius. I wonder if anything like this is in the works?
Not really. In Europe Spotify does have radio features - both genre and artist-based versions. But to be honest, neither option is very good. My music tastes don't seem to fit in well with the genre options you have on Spotify, and the artist-based radio plays that artist way too much, so you don't get a lot of variety. --Hopefully this is something Spotify will try to do better on. Right now you really have to know what you're looking for.