I was impressed when Steve Jobs first showed the multitouch trackpads, but I really don't use it that often now that I have a MacBook Pro that can do it. A few things are wrong with how it works. It just doesn't work in enough applications to really make it useful. One thing that totally makes me hate the way it works is when it resizes icons on the desktop. I talked about a beta of Firefox that included multitouch and it helped, but I still didn't switch to it. Someone figured out what is missing and released it as a preference pane add-on. It is called MultiCluth. It lets you set what each gesture does in each application. You just have to tell the application the keyboard shortcut equivalent of what you want it to do. You can even set system-wide gestures. You can download MultiCluth free here from MacUpdate (it is in beta).