Awesome innovations, features.. anything you wanna mention.. no comment 'bout that..
but not why including the 'four-fingered gesture' in the magic mouse, watching the video one can note that the gestures done on a macbook trackpad to the magic mouse vary by a less finger, for example scrolling on the trackpad is done by two fingers and on the magic mouse by one... so why not having the four fingered gesture with three fingers on the mouse.
I know their's a button for that and everything, but from a macbook user point of view it would have been good.
Anyway no dissing from me for sure, Apple just goes out of the box, every time.