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 one more choice when the headphone is disconnected, close both S2P & Bluetooth.
– fixed the occasional problem that the same appointment was shown twice.
– fixed the occasional double lock problem.
– fixed the occasional problem that under Power Safe mode, the device behaved weirdly when another program running in the background.
– fixed the occasional problem that the temperature was always shown as zero.
– some minor bugs fixed.

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