Eric-
I have not seen a 2nd edition signed by him. I have a 2nd signed by King (the only one that I know of), but not Phil.
Also, I have not seen any remarques by him. He promised me a prelim sketch of Roland from his files way back when I met him in 2005 at Palavercon, but I never got it. We traded several e-mails to the point where he said he had it packed up and ready to ship, but then all my further e-mails went unanswered.
Karen and Robert see him fairly frequently. Perhaps Karen can assist.