Maybe we'll see her again next season, where she, rightfully pissed off at Peter for throwing her life into chaos both directly and indirectly, does everything in her power to make his life miserable - or at least wants to until she sees his family and ultimately decides he is punished enough by being a Petrelli.

This is a very good point and would make a wonderful comic relief scene. Caitlin arrives, armed to the teeth for revenge, and then experiences one meal with the Petrellis, perhaps when the boys are finally having it out with Angela, and then concludes she can't do worse than that, and departs.

As cadesama said, at least now we know why Peter and Nathan touch each other (and other people) if they want to be convincing. They simply learned that it works this way.

They totally did, and now they're doing it automatically without conscious decision, having absorbed the mannerism as children.

Are you still feeling the need to write that story btw?

*coughs* Yes. I blame the show. And afterwards, Heidi will definitely not be in the mood to go anywhere near a Petrelli again for a good long while.

I agree that Bob seems like her adoptive Dad, parallel to Bennet. (And she is parallel to Claire down to an "origin" story that contains fire)

Yes, I noticed that, and I wouldn't exclude Bob having been the Company Man sent after her a la Bennet and Claire, too. Re: her biological parents, before this episode, I saw people speculating it could be Meredith and Some Other Guy Than Nathan, making her Claire's half-sister, but if Elle is 24, then I doubt it - Meredith isn't old enough.