“HTML5 has become the term for “anything cool in the browsers.” It is the new Ajax. It isn’t about what is in one particular spec”

http://hacks.mozilla.org/category/demo/featured-demo/
http://www.chromeexperiments.com/
http://www.apple.com/html5/

Apple has a new microsite touting HTML5 standards, yet when you hit the site in a browser other than Safari and try to run a sample you get:

Erm. Hmm. Faruk has it right:

The point isn’t that all of the examples should work in all browsers, but that it most of them actually do…. which you can see if you fake the user agent or [...]