Ars:
I have yet to decide whether the Magic Mouse is much of an improvement over its predecessor. The multitouch capability and lack of a scroll ball to gum up are definite upgrades, but the loss of Exposé and Dashboard support about balance that out for me. If you like your Apple Mouse’s pressure sensors and the ability to launch Exposé and Dashboard from your mouse, you may want to give the Magic Mouse a pass until Apple figures out a way to support those features with its new mouse. If you’re in love with multitouch and are tired of futzing with scroll wheels and scroll ball hand crud build-up, the Magic Mouse may be for you. If you’re using a Logitech or some other third-party mouse and are wondering if it’s time to give one of Apple’s eccentric mice a shot, it isn’t.
I don’t think Apple is ever going to add those features back in, and I think that’s just fine.