I've been recently enticed by the new features and syntax of HTML 5. Because of this I decided to convert my Drupal theme into HTML 5. It is still not complete but many of the basic changes have been made.
I tested the new version on Safari, Chrome, and Firefox. It should work on IE but since I don't use windows it is a little hard to check. However I really don't get much traffic (except from me) so I'm not too concerned about it not working for IE.
I hope to add some interesting HTML 5 tests to my website in the future as I try out the different technology.