We are finally talking about Silverlight! Check out Soma's blog post here and the official Silverlight site here. They also have a downloads page with snazzy wallpapers!
I went through the site and it looks like we'll have to wait until April 30th and Mix for the entire story to be revealed. I for one can't wait - there is some seriously cool technology being showcased here. I couldn't believe what I was hearing when I first heard of this internally - I remember saying something along the lines of "You guys are going to do WHAT? On the Mac too?"
Update : Tim Sneath has a nice post on Silverlight. No. 10 on his list is what I was so stunned on hearing about :-)