Again, Laszlo was there first! But this is cool nonetheless.
Thanks to Foo for find this simple Blog Reader created using Flex. Flex is Macromedia's XML-based UI API, which I talk more about here. This is the first almost-real-world Flex example I've seen. I've played with XAML a small bit, but haven't seen any real-world examples like this. What I want to see now: A MXML (Flex) to XAML (Avalon) translator done in XSL.