The hardest thing about working on Open Specifications efforts is keeping your mouth shut.
I'm talking about keeping your mouth shut when you see something you want to change - will the net benefit of just even making the suggestion outweigh the costs of prolonging discussion and delaying close of the spec? Usually not, especially if the spec is getting close to being finalized.
So, my greatest contribution is usually just keeping my mouth shut!
UPDATE: Oct 04, 2007 3PM PST: The press release is out.