I'm working for a music group in Paris. And I can guarantee you that the big thing of the event is a new way to listen to the music that you download on the store !!!
iTunes 8 will add interactivity to the music and help you to create and mix the artists tracks by downloading blocks put availaible by the artist.
I swear that i say is 100% legit. You have been warned. Please keep in mind my post.