I loved this post over on the Clarity Consulting blog about procedural animations in Silverlight – very cool;

http://blogs.claritycon.com/blog/2011/03/30/advanced-animation-animating-15000-visuals-in-silverlight-2/ 

I gave it a try in IE9 on my Windows 7 laptop and then thought I’d try out FireFox, Chrome and then FireFox on my iMac and all had great performance on this sample.