http://www.youtube.com/watch?v=Wdf2-VJvX8M Discovered this today. The 4S has a infrared sensor firing every time the screen is on. It does not matter if Siri is off, auto brightness is off or you are not on a call. This seems like a waste of resources. I assume the CPU is being utilized for monitoring and power to fire the sensor. 5.0.1 has not changed this behavior. Any comments?