詳見Proposal to Adopt HTML5，這兩天在網路鬧的沸沸揚揚的消息，正反面意見都有，還看到有人說WHATWG是Opera用來把他們的東西推回W3C用的～～。
以下是提案書
Dear HTML Working Group,HTML5, comprising the Web Apps 1.0 and Web Forms 2.0 specifications,
is the product of many years of collaborative effort. It specifies
existing HTML4 markup and APIs with much clearer conformance criteria
for both implementations and documents. It specifies many useful
additions, in many cases drawing on features that have existed in
browser-based implementations for a long time. And it actively draws
on feedback from implementors and content authors. Therefore, we the
undersigned propose the following:- that the W3C HTML Working Group adops the WHAT Working Group's
HTML5 as the starting point for further HTML development
- that the W3C's next-generation HTML specification is officially
named "HTML 5"
- that Ian Hickson is named as editor for the W3C's HTML 5
specification, to preserve continuity with the existing WHATWG effortIf HTML5 is adopted as a starting point, the contents of the document
would still be up for review and revision, but we would start with
the existing text. A suitable next step might be a high-level review
of functionality added and removed relative to HTML4.01, followed by
focused discussion and review of individual topic areas, including
both content already in the spec and proposed new features.
Discussions should be guided by common principles along the lines of
http://esw.w3.org/topic/HTML/ProposedDesignPrinciplesIf the group is agreeable to these proposals, Apple, Mozilla and
L. David Baron, Mozilla Foundation
Opera will agree to arrange a non-exclusive copyright assignment to
the W3 Consortium for HTML5 specifications.
Lars Erik Bolstad, Opera Software ASA
Brendan Eich, Mozilla Foundation
Dave Hyatt, Apple Inc.
Håkon Wium Lie, Opera Software ASA
Maciej Stachowiak, Apple Inc.