My batter life used to be great on my iphone. I could go all day without the battery going dead. This is with little browsing and receiving fetched email's every 15min. I had no push activated except for my mobileme account for which I get no email but just calendar changes. Ever since I updated the iphone to enable MMS, my phone dies before the day is out. I am not sening nor receive any MMS messages. I may only get a few texts in a given day. Is anyone else noticing decreased battery life after the update? BTW, As I am typing this, my wife just called me today to say that her phone is already 1/2 out on battery and we unplugged the phone from the charger like 2hrs ago. She normally has shorter battery life, due to pushed exchange mail/calendar but never this bad.