Ive noticed overheating of my Lumia 925 on the back side while using the Nokia Drive +.
However, your case seems unusual. Are you using any particular type of case that may be responsible for the overheating?
Wow, thats impressive battery actually. What phone are you using?
After the upgrade my battery life seems to have improved. I have disabled all but three background tasks.
Re: Am I the only one who hates 8.1 ?
Action center, New Multitasking menu, Flick down gesture to close an app, Overhauled Marketplace, Cortana, and the Podcast app .. All came packed with the WP8.1 DP upgrade. Loved it!