Steve, did you approve the iTunes Genius UI?
Since the latest iTunes update I have the new Genius functionality. Apple finally suggests music based on what I listen to and not only what's in my iTunes Store basket. Last.FM already did this but why use 2 apps when one can do the job? I wonder if Steve Jobs has seen the default GUI. The Genius sidebar on my iMac is so small I still don't know which music is suggested.