My N7 has reached the highest of 104F and never has been too hot to hold or use. I usually reach this temperature when using full brightness and Bluetooth along with quite a bit of apps all at once. Like gaming, YouTube video, music in the background, s note and other note taking apps, web browsers, as well as the floating apps app which using quite a bit of processing power. I also live in California without any central air conditioning. So I'm sure the rather warm temperature in my room also contributes a little.