ScreenWakeUp uses the proximity sensor to lock and wake up the screen. It run as a service and it will restart automatically on boot.WARNING: BEFORE UNINSTALL YOU MUST RELEASE THE LOCK ADMIN! (run ScreenWakeUp and select on RELEASE LOCK ADMIN)You can lock the screen with ScreenLock application (it’s not a widget), a long press on search key, covering the proximity sensor on the top of the phone for a few seconds (settable) or simply you can put the phone in your pocket (I’ve noticed it can fail if the tissue of pocket is opaque black, I think due of how the proximity sensor works).The screen automatically wakes up (or unlocks if enabled) when you take the phone out from the pocket or you move a hand over it.The program is event driven (don’t uses CPU cycles to check sensors), but the phone needs to stay in PARTIAL_WAKE_LOCK mode to permit the wake up. The CPU doesn’t go into sleep mode, so after a few minutes (settable) the lock will be released to prevent battery drain. You can read more about PARTIAL_WAKE_LOCK here: http://developer.android.com/reference/android/os/PowerManager.htmlDon’t be afraid about consumption of proximity sensor, it’s really low (0.045mA on my atrix).Permissions required:- WAKE_LOCK for turn on the screen- DISABLE_KEYGUARD for unlock the phone automatically- MODIFY_AUDIO_SETTINGS for check if a headset is connected- RECEIVE_BOOT_COMPLETED for restart automatically at boot- VIBRATE for vibrate on screen lockNo internet connection needed, no ads, no privacy risk.Known bugs:- Sometime the auto unlock option don’t works- Sometime the proximity sensor stops to work when the phone is connected to PC (you must restart the phone)Legal stuff:This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.Tested only on Motorola Atrix with Android 2.3.4For comment / feedback / bug / suggestion / localization / donations write to: iiizio AT users.sf.netPS: Sorry for my bad EnglishThanks to Daniel Añez Scott for spanish translation.