I fully charged last night and barely used the phone today..maybe a half hour tops. Tonight I notice the battery at half level and go into the usage settings and there it says 7hrs, 39 minutes! I charge the phone and check an hour later and it now says 8hrs, 43 minutes usage. The phone has been sitting next to me doing nothing. I didn't have the ipod open at all today just in case that was running in the background. Something is up. EDIT: after thinking about it..the extra hour may account for the fact that it's charging, therefore the usage would go up by an hour. Still doesn't account for the 7-plus hours it was being used today while sitting in my pocket.