I was at the Wynn today and watched a couple hands of Negreanu and Greenstein playing their second match. They were playing 7 card stud again (unless this was a split game) and Negreanu had a very large chip lead. It looked like he was up at least 3.5:1 and maybe as much as 5:1.
There doesn't seem to be any significant information over on Negreanu's blog.
blog thread
The two hands I saw were as follows:
1. Negreanu is the low card bring in, Greenstein raises, Negreanu folds.
2. Greenstein is the low card bring in, Negreanue raises, Greenstein folds.
I'm sure glad I was there during the action hands.