Most of the focus on the forthcoming iOS 4.2 update has been on the iPad, and rightly so. The iPad is finally getting marquee features that most iPhone users have enjoyed for months, like multitasking and folder support. iOS 4.2 doesn't bring as many changes to the iPhone as it does to the iPad, but it does introduce a few new features to the iPhone. iOS 4.2 is expected to go live later this week, but we'll give you a brief rundown of the new features today. Note that most of these features should be identical on newer versions of the iPod touch, so anywhere I say "iPhone" (which is all I've got to test with), you can probably safely assume I mean iPhone/iPod touch.
AirPlay
The biggest new feature in iOS 4.2 is AirPlay, which
