It looks like iTunes 9.2 has just hit the Software Update screens of Macs across the land, and if you've got an iPhone 4 on order, this is one you'll want to get around to installing in the next few days -- it's the only way you'll be able to sync (actually, you'll want it if you're using iOS 4 on any manner of iPhone). Major features include iBooks support on the iPhone and iPod touch, PDF syncing through iBooks, home screen folder organization, and "faster backups" with iOS 4-equipped devices -- a promising sign for anyone troubled by long sync times. Follow the break for Apple's full rundown.