Got my TB yesterday and charged it completely before I ever turned it on. I bump charged it a couple times as well. Last night I had the wifi on with minimal battery drain. I shut the wifi on and went to bed. When I woke up, I still had a good 80% left on my battery. I didn't shut anything else off or change any other settings. This morning, I went through all my apps and changed them to battery-friendly settings. Then I went off to work in Boston. My battery drained very quickly (although I did d/l some apps and check/respond to emails) and was dead by 2 o'clock. The phone itself was warm. Not hot, just warmer than any other smartphone I've ever had. Anyone else notice this?