Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3) I have now a second iPhone 4s 64 gig get hot to touch and battery last 3 hours max. This happened after 3 weeks now. No new software. I reset network, reloaded iOS with just default programs. It's all the same. Hot to touch and battery life is very short. Ideas? Back to apple store?