Google Chrome Blog: Announcing the Chromium OS Open Source Project
Well its out !
Google's Chrome OS's Open Source code was released today..
Check out the preview here..
Want to Try it yourself ?
The virtual box way : http://www.techcrunch.com/2009/11/19/guide-install-google-chrome-os/
The vmware way : http://gdgt.com/google/chrome-os/download/
Check it out :)