Markup Review

That standards guy has converted his site to use html5 for markup, you can see a bit of a write up here http://www.thatstandardsguy.co.uk/blog/2009/01/15/html-5-and-the-now/ and here http://www.thatstandardsguy.co.uk/blog/2009/02/11/wordpress-html-5-theme-now-live/.