For those who dont have that much time on your hands you may want to try out our new MS Learning Silverlight Snack Player. I like it short and sweet and these "snacks" are around 15-20 minutes long which contain demos, animations and explanations of core technology. http://www.microsoft.com/learning/_silverlight/learningsnacks/ws08/snack01/Default.html
rotfl - Silverlight may well be cross-browser, but the javascript used for that site certainly isn't. Firefox breaks firstly at Scene.xaml.js (line 296) then Scene.xaml.js (line 132), Scene.xaml.js (line 842) etc.
Too bad.