そこでHTML 5ですよ

HTML 5 : We don't need no XHTML (via /. - W3C Considering An HTML 5)によれば、

the appearance of HTML 5 is a resounding "we don't want no XHTML" or a more polite "we'd rather stick to what we know" from browser vendors and developers, with the almost guaranteed side effect : end users suffering at the expense of standards.

ということらしい。Apple, Mozilla, Operaなどが組んだWHATGというグループが今ロビー活動とかやってるらしい。HTML5のドラフトによれば、

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