Using my PC, I need my laser mouse. But on my macbook, I’m more than happy using the trackpad (my crappy acer’s trackpad doesn’t help).
Why? The gestures for one thing makes it easy to switch between desktops or look at all the other windows that are open. I don’t use the 4 finger pinch to get the app view much though as open most apps from the dock. But either way, having some sort of variant of this is welcome.
The animation of the windows returning doesn’t look that slick though. It somewhat gives the appearance of lag. Also, rather than three swipes being able to switch between apps, why not the actual multi desktop? My left hand can do the alt-tab thing.