I update my 4S to iOS 7 same day Evasi0n7. I did a DFU restore and installed 7.0.4. I didn't use a back up and set up as new. Now does anyone else with a 4S notice that the battery life just isn't as good at iOS 6? How about that the phone runs a little warmer too? It's not horribly worse but a little worse. Before I would get 30 min before it going down to 99%. I would get 1hr 15min at 90%. Now it's 15min and 50min. I have everything turned off. Perhaps this is something I have to live with? Thanks. I lost 5% just typing this up. Weird.