Ok when i had 3rd party apps with 1.02 i did not know about services app and turning off ssh so i had less than steller battery life, i didnt really mind because i had Teenage Mutant Ninja Turtles in my NES app but i was a little worried that with 3rd party apps again on 1.1.1 i would lose some battery life and battery life seemed to increase with 1.1.1 for me. So a few nights ago i charged up my iphone to 100% and put on a playlist that had a set number of songs (113) and played it till i went to sleep and let it play through the playlist overnight, and in the morning my battery life was at 50% with 7 hours and 35 minutes of usage. After that test i used the ijailbreak and added 3rd party apps to my phone. Well last night i charged my iphone 100%, turned off ssh in services app, played an hour of Tecmo NBA on my iphone (Michael Jordan had 45 points
) and then did the same thing with the same playlist running overnight. When i woke up my battery was at roughly 50% again (honestly it looked a little more) and my usage was at 8 hours and 37 minutes. In conclusion, im not saying that battery life for me is definitively better with 3rd party apps but i am saying that it doesnt appear to drain it any more than usual.