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 “Unlock to Home screen”.
– added option “Ignore screen rotation”, i.e. if on, the orientation of S2U2 will not be affected by the system.
– changed option “UnlockOnAC” to “ActionOnAC” – lock/unlock when external power is connected.
– extended the range of “WakeupDelayMS” to 4000ms.
– made the “Change Wallpaper Randomly” more random; but still, it’s fake.
– fixed the display displacement problem on devices which have G-Sensor.
– fixed the occasional problem that the wallpaper will not change if a folder is assigned.
– improved the compatibility of DirectDraw (fixed screen not update/blank).
– reduced RAM usage a little.
– a few minor bugs fixed.

http://forum.xda-developers.com/showthread.php?t=412418