The new Magic Trackpad is the first Multi-Touch trackpad designed to work with your Mac desktop computer. It uses the same Multi-Touch technology you love on the MacBook Pro. And it supports a full set of gestures, giving you a whole new way to control and interact with what's on your screen. Swiping through pages online feels just like flipping through pages in a book or magazine. And inertial scrolling makes moving up and down a page more natural than ever. Magic Trackpad connects to your Mac via Bluetooth wireless technology. Use it in place of a mouse or in conjunction with one.
Needs more control of touch commands, including adding options such as keyboard combinations (Command [, for example) and double-clicking.
Summary
Trackpad has sovled the problem of running off the mouse surface trying to span 2 screens, and reduces hand movement. Allows me to grab the pad and sit back while reading long articles. I'd like to see a lot more customization options, maybe allowing keyboard combinations and custom designed touches.