It's interesting, but one of the big draws of Pandora is the ability to like/dislike a song and have a station get more and more tailored to what I like. This seems to just be a random sampling of indie stuff.
Pandora aims to replace radio. This just aims to replace one radio station. Good luck to 'em.
Of course this might not be what they're intending to do at all.
I wonder what kind of quality control they have. Will they accept my five-minute a capella nose-singing version of Somewhere Over The Rainbow?