Check my reply to you in the "on the fence for nova" thread where I explained how this worksMore elaboration on Nova functionality, please. Particularly gestures as well.
Other questions, if you don't use some of the gestures, can't you import new icon packs and widgets and themes into the stock launcher? I've read that performance seems faster on Nova. This seems a little difficult to square as added functionality and content would seem logically to slow performance ever so slightly. Isn't it because it is actually running on top of the UI skin, TouchWiz?