The temperature of battery chip (which is located somewhere on PCB) is 50 degrees, SoC itself is probably much heater, not to mention MPU itself. It may not be big danger for people - for example - painting with mypaint on 1150 mhz (as CPU isn't on 100% - yet, I still don't recommend it), but running that 100% time is risky - any random -devel (or not) program can get "Stuck" in 100% for extended while (until You kill it), while aircracking or similar tasks actually keep it 100% on purpose. There is almost no benefit in keeping it 1150 mhz instead of 900 mhz, yet temperature difference is colossal.

Goddamn fried egg lovers

/Estel