I was playing Plants versus Zombies with itunes playing an album. Other apps that were running were Sparrow, Chrome, Reeder and Adium. I checked my temperature with iStat menu 3 and it was bouncing between 138 - 141 degrees. I have had this 2011 Macbook Air for a month now. I don't mind if it overheats as I am over the OCD phase. I haven't really been reading overheating topics on this board, but I am curious to know what is the usual temperature for a MBA? What is too much heat?