Excellent paper by Edd Dumbill on the future of HTML.
“In this two-part series, Edd Dumbill examines the various ways forward for HTML that Web authors, browser developers, and standards bodies propose. This series covers the incremental approach embodied by the WHATWG specifications and the radical cleanup of XHTML proposed by the W3C. Additionally, the author gives an overview of the W3C's new Rich Client Activity. Here in Part 2, Edd focuses on the work in process at the W3C to specify the future of Web markup.“