Man, I am lusting after XHTML 2.0.

http://en.wikipedia.org/wiki/XHTML_2.0#The_XHTML_2.0_draft_specification
http://www.xml.com/pub/a/2002/08/07/deviant.html
http://www-128.ibm.com/developerworks/xml/library/x-futhtml1/
http://www-128.ibm.com/developerworks/xml/library/x-futhtml2.html

And, of course, the working draft:

http://www.w3.org/TR/xhtml2/

Okay, I'm not quite *lusting* after it, but it looks cool. I'm all about streamlining html, offloading presentation to css, improving the quality of semantic markup (particularly in structuring document hierarchy), and legitimizing common scripting techniques (rollovers, dropdown menus, form validation, etc.) by accomodating them in standards.