I would prefer to use the double press of the power button. The current functionality causes the device to lock(if unlocked). What I would like to see is unlocking the device when double pressed *if* in locked state. Sort of like toggle lock/unlock with double press. I know there is an app in extras-devel that allows you to customize the behavior of the power button and the camera button. I think it is called shortcutd??

This feature would enable us to unlock the device with one-hand, instead of reaching out to the slider while holding the device with the other.