Has anyone else had issues with their usage stats getting screwed up? I have noticed that since I updated to 2.1 my usage stats will clear out like I have plugged the phone up a for a while. You know it normally shows stand by time and usage time until you plug it up and then it will say it will display stats once the iPhone has been fully charged again. Mine will just for no reason act like it has been charged even though I have not plugged it up to my Mac or wall charger.