deltaLock locks your Pocket PC's screen and buttons while it's in your pocket playing music or doing whatever would require it to stay switched on.
To lock your screen simply launch deltaLock and your screen will turn off. To unlock your screen again, press and hold down two hardware buttons. The default IDs of these buttons are 195 and 198, which correspond to the "Windows" and "OK" buttons of a HTC Blue Angel but may vary with different hardware.
This handy utility provides access to a function which many Pocket PC users have found their devices lacking. Try deltaLock today!