Alex Vincent recently posted this to WhatWG’s mailing-list:
For anyone interested in seeing WF2 implemented in mozilla.org code, I invite you to read and comment on http://wiki.mozilla.org/DOM:Web_Forms_2.0 . Please bear in mind this is intended as an internal design document, and this is very much a first draft - so it will change!
It means that, finally, WebForms2 spec goes mainstream. Good news for all html-coders out there.
p.s. I am thinking about writing a bigger article about webforms2 later this week.