It's not the final release yet, but it's a step up from a CTP! The XNA 3.0 BETA is now live and available for download. Check out the post from the XNA team on the team blog and then go grab your download! Can't wait to see what the community starts churning out with some of the new features. It's always fun when a new release of the framework comes out (even when it's just a CTP or BETA) because the community always seems to come alive and a lot start pouring out.
Have fun and if you've got an interesting project or site to share, be sure to leave a comment. I love checking out new sites and pretty much everything related to XNA and game development!
[Edit: While you're at it check out the ZMan's awesome comprhensive list of What's new in the 3.0 BETA. This is just an incredible resource and a big thanks for the ZMan for putting it together and making it available to the community. You rock!]