I play on my EVO as well, it does get warm. It gets hotter with a case on. First few times playing I noticed the kickstand was much warmer. Yeap, gets obviously warmer when playing while charging, but it's expected.

I did experience a slight freeze of the game last night, unit became unresponsive, but came back. It may be a result of running Shootme, screen grabber, in the background.

-CC