I love channel 9, and would like to see the site spiffed up with a silverlight overhaul. It would make the whole site so much more engaging and allow for many new features (even if I can't think of one right now...).
How would bloat and pretty spinners make the site more engaging?
And the fact that you can't think of new feature is rather telling.
I have to go with Blowdart with this one: features first, technology second.