Using MultiClutch I can go back and forward by swiping left or right, switch tabs using rotate left or rotate right, open a new tab by zooming in and close the current tab by zooming out. The program lets you choose everything and also somehow unlocks 3 finger swiping up and down. I set swipe down to use the "All windows" feature of Expose and swipe up clicks my stumble button for me. There's also zoom in-zoom out and zoom out-zoom in that I haven't assigned to anything. It works globally and for specific applications and is lots of fun.