Wirelessly posted (Mozilla/5.0 (iPod; CPU iPhone OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3)
I was getting 3-4 hours moderate use up until today. I double checked all my notifications and noticed that Facebook had push notifications enabled after this last update, turned it off and my battery life went to about 4-5 hours moderate/heavy use.