Engadget
Yay! Now all the iPod/iTunes/not-tablet speculation can go here.
The invite reads "It's only rock and roll, but we like it." A subtle way of reducing tablet expectations, perhaps?
09/09/09 is, of course, the same day the remastered Beatles albums are released, as well as the same day the Beatles make their first foray into digital distribution, through
The Beatles: Rock Band. So bringing Beatles to iTunes on that day would certainly seem fitting.
Of course, launching iTunes 9 on 09/09/09 would be pretty sweet, too.