On May 17, 2007, the W3C published the latest version of Web Content Accessibility Guidelines (WCAG) 2.0. Changes have been incorporated because of the criticism the first working draft received. There’s a very helpful review of the changes at The Web Standards Project that might give you a quicker summary of what’s new than reading the entire W3C document. The latest working draft was released before the WCAG Samurai came out with their “errata” earlier this week.
Note that the Samurai’s errata refer to WCAG 1.0, not 2.0. They pretty much dismiss 2.0 as the useless product of a dysfunctional process. The only real link between WCAG 2.0 and the Samurai’s efforts is that the effort to create the errata was probably spurred by the frustration with earlier drafts of WCAG 2.0.
Thanks for pointing out that distinction!