The iTunes advanced preferences options include "Allow iTunes control from remote speakers". Wow. That would be incredibly useful. This suggests the next version of the AirPort express will allow control of speakers from some kind of remote.
It's grayed out now of course, but what a nice surprise.
The other interesting feature is that the Windows installer now offers to install Apple software update for Windows - a new product. I wonder if that's part of how Apple is trying to sell the movie companies that their products will be secure. Forced updates will help.