This app, 'Screen off', is a tiny app that can help you turn off screen and lock device without power button.
This app is NOT widget! You can place the shortcut in anywhere as you can.
This app uses device administration function in Android 2.2 or later, so you must activate it before it works.**NOT NEED ROOT!**
* Lock device with one click
* Not a widget so it does not run as service in the background
* Auto killself after locking to save your Battery & Memory