Swipe between Spaces/full-screen apps: Uniform gestures for Multi-Touch Trackpad and Magic Mouse
I figured out how to do it with BetterTouchTool. In BetterTouchTool the action is called "move right/left a space. 

I set up an action for both 2 finger swipe left, and 2 finger swipe right on the trackpad and left the magic mouse with the standard 2 finger swipe.