I'm not sure which category to post this in, but I hope this is right. There's a grammatical/spelling error in today's (9/17/07) comic that I thought I'd point out so that Penny Arcade can fix it if they want.
"I can feel it's heat" should be "I can feel its heat." Despite the fact that "it" here is possessive, "it's" always means "it is," so the correct grammar is "its." There's no way of just e-mailing PA (that I know of), so I thought I'd post the correction here. Hope it helps.