Hi, I noticed on my iPhone 4 (once), on my sisters iPhone 3G and my mom's iPhone 3GS that the usage time is the same as the standby time after a charge. That means that something is running in the background all the time. I do know this isn't supposed to happen on iOS but clearly it does. I fixed it on mine by rebooting it once, however on my sisters iPhone 3G and my mom's 3GS rebooting it does not help. Anyone has any clue what the hell this is about and how to fix it?