S2U2 (Slide2Unlock2) is a simple lock/unlock application which has the iPhone style slide unlocking. It can be used as a screensaver while you don’t use your device. It has a CallerID function (but some devices may not work, so please try it first); S2P control plugin; and volume control.

Changes:

– added option “Vibrate On Connect” to vibrate the phone shortly when a call is connected.
– fixed the occasional problem that the system is locked after an incoming call is connected.

http://forum.xda-developers.com/showthread.php?t=464695