Now that the Web Forms 2.0 has been incorporated into HTML5 and is
quickly progressing toward a "Last call for comments" phase, this
project will seek to implement as much of the HTML5 Forms section as
possible to assist with providing implementation feedback.
This will be a complete rewrite of the current codebase. This project
will progress as time permits, but it is now on my radar again.
http://www.whatwg.org/specs/web-apps/current-work/multipage/forms.html