Tim Sneath as posted at his blog 50 examples of how useful could be Silverlight.
It's great to see so many Silverlight-based widgets, samples, demos and applications appearing out there. I spent a happy hour this morning searching around the Internet for examples and samples, and thought I'd aggregate the fruits of my research below.
I have to say that I'm impressed with some of the examples. Try the Chess game and you will see what I'm saying . Oh, to see the examples you will need Silverlight installed in your PC.