“ Originally Posted by penorwood 
”
As far as I can tell ... S2U2 is different entirely from Slide2Unlock Pro ... I could of course be wrong ;)
slide2unlock pro is lighter and straight to the point but not at all more useful than s2u2 which is smoother, adds a volume control and a full screen caller id feature. Plus its way more customizeable than slide2unlock pro so its no contest. The point of the pro version is to save memory consumed when using it