As of 26 February 2008, the WCAG Samurai errata for Web Content Accessibility Guidelines 1.0 are available. If you've ever read the original version of the WCAG, you'll appreciate the candid rewrite and corrections. http://wcagsamurai.org/errata/errata.html
Writing
WCAG Samurai release
February 27, 2008
From the archive. I've left this one just as I wrote it.