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) Absolutely horrible after upgrading to iOS5. Charged it all night, and started using it an hour ago. The only thing I've been doing is listening to music through my headphones and browsing the web, and now, and hour later, the battery is at 20%. My battery life was better on iOS4, even when I was JB'd. I have bluetooth and location services off in a futile bid to get better battery time, as well as auto brightness. I'm on a 4th gen 32gb if that matters at all. Is there ANYTHING I can do?