There are several lockers out there with several different types of functionalities. In this case, XDA member tarantula78 brings us this handy little new concept of locker for our devices. This program uses the light sensor equipped on many of the newer devices to determine whether the phone is inside your pocket. If it determines that this is the case, it will place an overlay screen on top of your home screen, with a three touch pattern to unlock it.
The program is in the beginning stages, so expect a few bugs here and there. Having said that, the dev is expecting to create new versions as bugs are discovered and fixed.
Anyhoo this is the point of the app: I dont like to lock my phone with the password all the time as i usually listen to MP3s and I dont like the fact that my fone (i8000) sometimes unlocks the screen on receiving a message or email etc. The worst thing is when youre walking and happily listening to your MP3s and then suddenly you hear beeps from your phone as it presses against your leg!
If i lock it i have to put a password on it if i dont lock it sometimes the End Key gets pressed and turns the screen on or some event on the phone turns the screen on and then you have to dig it out your pocket and the Sleeve of the phone and close it again.
Maybe its just me but it bugs me very much.
You can find more information in the application thread._________