Lvothe:
The Parallax Si1143 Proximity sensor has three points where it "senses" if i use one to turn on and off and the other two to the dimming (+ & -) would it be faster? Using the time to increase/decreases the light...
It would work if it understands which direction it was being swiped from. You might need to make your own swipe code, it shouldn't be too hard though.