WebMatrix3 preview is available for download.
In addition to everything which WebMatrix 2 offers, WebMatrix 3 brings you easy access to your Windows Azure websites. Icon-sized previews of your sites make them easy to find and open. Access your remote sites as seamlessly as local sites. When you need to protect your work or collaborate on team projects, you’ll love our integration of Git and TFS source control systems. These are just a few of the highly requested features we’ve added in WebMatrix 3!
Try it out today on http://www.microsoft.com/web/webmatrix/next/