Shuffler: Like The Hype Machine, but streaming

I'm not totally convinced that Shuffler - which will suck the music out of a blog and turn it into a streaming music services - does a thing that will totally flip my life into an approved-by-Grand-Designs better way of living, but it's interesting.

You choose a genre, it streams music and lobs the relevant post underneath. It might make a bit more sense when thought of as an iPad thing rather than a web thing, and then it could be a sort of musicky magazine which sings to you affair.

There's a question, though: if Shuffler is pulling music blogs into its paid-for app, and music into its paid-for app, how come Shuffler keeps all the money that's paid for the app?