Weavesilk.com/

Great. But can you tell whether its using html5 and other such goodies?
@mesh says its an example of canvas. But in the source its xhtml.

<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.1//EN” “http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd”>

So what exactly is this?

edit:
http://labs.dragoninteractive.com/rainbows_article.php
(interesting)

okay may be its xhtml5 http://dev.w3.org/html5/spec/Overview.html#html-vs-xhtml