WCAG WG review of HTML 5 spec http://dev.w3.org/html5/spec/spec.html
Sections of potential interest
3.3
3.4
4
6.12
7
12
Miscellaneous Issues for 30 July 2009 http://www.w3.org/2002/09/wbs/35422/20090730misc/results
RESOLUTION: accept technique as ammended