I've never even used OSX Lion, but I still prefer "natural" scrolling. I just run a script on login that contains "xinput set-prop 13 303 -111 -111". Obviously,

I've never even used OSX Lion, but I still prefer "natural" scrolling. I just run a script on login that contains "xinput set-prop 13 303 -111 -111". Obviously, you'll have to find the numbers in your current xinput as to obtain the device and preserve your optimal scroll speed (My example was for a Lenovo W510). This reverses the scroll direction on my trackpad, but not on the scroll wheel of my physical mouse or my lenovo nipple mouse.