I think this is a problem . I don't turn my phone off usually, but it started to overheat. I've already seen posts about frequent overheating, so I just turn off my phone for a few minutes. I had it attached to a charger this time, and everytime I turned the phone "OFF" it simply cycled back through and booted up again. Is this an issue? I don't remember this being the case when I first got the phone. I have not rooted the phone or done any out of warranty customizations.