For the iPhone junkie, here is a video that breaks down the Keynote to flesh out some arguments about the iPhone. The most notable point made is that an iPhone tab in iTunes' interface lists ringtones, near-confirming that the iTunes store will sell ringtones to customers. Well...that or you will get ringtones free with music downloads. And I'm just $ure that will happen.
Other than that juicy tidbit, there's a little more information on the interface for anyone who just can't learn enough about the Jesusphone.