I held off on upgrading my iPhone 4 firmware until the 4.3.1 release. Ever since upgrading, my battery drains so much faster than it ever used to, it's horrible. Anyone else noticed this? Just a few minutes after taking my phone off the charger the battery was already at 99% and i didn't even do anything. Now i'm on hold with the dmv and my battery drained 5% in 7 minutes. I'm afraid my battery won't make it through the day, what a nuisance!