So I have been loving my 4S so far, and for the most part my battery has been OK, except for one certain thing. Sometimes, seemingly randomly while my phone is in my pocket and I haven't used it in over an hour or so it will get extremely warm, enough so that I notice it in my pocket. Not like burning hot, but warm. In this state it drains battery ultra fast. Before it did it I had around 75%, and when I took it out of my pocket it was at less than 50%. This is around the 3rd time it has done it since I have got it. I usually reboot afterwords and it goes away. This time I removed all the apps from the app tray and it cooled down. So has anyone else had a similar issue? With other peoples complaints about the battery, I wonder if there is a software bug where some process is getting stuck and using 100% CPU until a user looks at the phone and their battery is gone.