It looks like Apple is preparing to enable support for additional multitouch gestures on the iPhone. A new beta version of iPhone OS 3.2 was released to developers last night, and it includes support for two new gestures. The first is called 3tap, while the other is called LongPress.
It seems pretty likely that LongPress is similar to the tap-and-hold functionality found on Windows Mobile and Android devices. 3tap probably indicates tapping the screen with three fingers.
As MobileCrunch points out, the touchscreens in iPhone and iPod Touch models already support these gestures — and you already use a press-and-hold action to rearrange or delete icons on your home screen. But there’s a good chance we’ll see them start to show up elsewhere in the next version of the iPhone operating system as well as in apps from third party developers.