So i've been noticing something strange lately under iOS6. It happened with my 4S and continues now with my iPhone 5. On previous iOS versions the Usage statistic seemed to indicate screen on time (at least under my experience). Now though, I dont really know what 'Usage' means. My phone is currently reading 2 hours and 15 minutes of usage, but I know for sure that my screen on time was probably less an hour. Nowhere near what is indicated. So my question is this - What constitutes 'Usage'?