This just started a couple days ago. I noticed the battery was draining much more quickly than normal on my iPhone 5 running iOS 6.0.1. I can't think of what I have done differently than normal, but it's as if some sort of process continues to run in the background when the screen is locked. Today, it was almost too hot to touch. Battery seemed to be behaving normally today until about thirty minutes ago, I noticed it beginning to drain more quickly again, then it started getting hot. I know I can restore it to see if that helps, and I'll likely try that, but was curious to see if anyone else has had this happen to them over the last couple days?