Actually, a disable alt-tab type of command would work better then Autosuspend..
No. That would be a stupid idea. Ever play Everquest or Anarchyonline? They were faced with these same problems and disabled Alt-Tab all together.
Nope, but I've played other games who where also written by programmers that where a little too clever for their own good. What happens when your masterfully designed game hangs? Oh goody, a hardware reset, that'll do wonders for the hard drive. I hope you wheren't saving your game or something.