iTunes 8 - oy!
First, "genius" is not so bright. I had hoped it would make interesting associations for me; instead the choices it makes are simple-minded. I turned it off.
There are also some annoying behaviors.
1. That click-whoosh sound. Can I turn it off before I throw my computer out the window?
2. The behavior on clicking on an object is nonstandard, at least on my machine. If you click on an object, you have to move the mouse pointer away from the object before iTunes responds.
At least so far, I've got a bunch of annoyance for zero benefit...
Stu
Dell XPS M2010, Windows Vista, dual processor