[detwilers]

Mine doesn't pocket call all that much so not need to use S2U2. The primary issue, Like Ben says, is the thing wakes up all the time. If you ever just sit the thing down and watch it one day it will do is many time. Each time it will then stay on for a predetermined amount of time. If it is in your pocket and you pock constantly activates the touch screen it will restart the time before is automatically goes back to sleep. When I had S2U2 installed it still woke up from time to time. Even though it was locked, for me it is mainly about the battery drain. Who knows how much longer my battery would last if when I turned it off it stayed off (maybe 25% longer? who knows)