WHOOT!

Here's some links to get you synced up:

- Get Started (e.g. get new tools, SDK, runtime, tutorials, other links)
- What's New in Silverlight 4
- Breaking Changes (good to read if you're migrating older apps to Silverlight 4)
- Offline Silverlight 4 MSDN Documentation
- Online Silverlight 4 MSDN Docs