Check out the Processing.js geek project preview from John Resig, he’s got javascript combined with the Processing program language doing some cool things.
Don’t miss the demo links part way down the page for all the flavors:
* 91 basic demos.
* 51 larger, topical, demos.
* 4 custom “in the wild” demos.
There’s even a plug in there for downloading the Firefox Beta 3 browser, since I guess these demos just redline your system resources. Some of these demos are a Flash-like as can be. Weekend… 😊