power button area and around left to middle of screen, gets very hot. sometimes hot enough to feel on front display and not just back. wi fi only. nothing intensive. today I was mainly on chrome researching about Costa Rica. froze few times. then black screen and after shut Down. battery around 60%. This has happened other times, not necessarily on chrome and sometimes charging battery at same time. only had s3 for about almost 2 months. Also notice it seems slower than my prior s2.