Scott AAronson's blog,
http://www.scottaaronson.com/blog/ , says that while the paper introduces some thought provoking ideas, the only mechanism that occurs to him to fairly convey his hunch about the paper without being unfair to the author and without interrupting his vacation in Israel and Greece to do the hard work to back up his hunch is to offer a personal $200,000 supplement to the Clay Millennium Prize if the paper is right.
He says "I'm dead serious -- I can afford it about as well as you think I can"