My thoughts...

Tim Kring in this week's TV GUIDE says someone who's been there from the very beginning will die during Feb sweeps. I say it's Mrs. Bennet, Claire's adopted mom. She's become a rather useless character and we know from the previews that Sylar encounters her next week.

Also, Nathan is probably Claire's bio dad. It further brings them all together (keeping Tim Kring's dictum in mind that "everything is connected") and it further supports why Nathan did not want Peter going to Texas. Nathan's cheated on his wife before, so it's not unreasonable to see that he had an affair 17 years ago.

We all wear a green carnation.