Scott Guthrie today announced that the "Atlas" code name for the ASP.NET team's rich client framework and set of server controls and JavaScript extensions will be retired and replaced with not one, but three separate names:

As part of releasing “Atlas”, we have also finally locked on an official set of product names that we will begin using moving forward. What was formerly called “Atlas” will now have a few names:

1) The client-side “Atlas” javascript library is going to be called the Microsoft AJAX Library. This will work with any browser, and also support any backend web server (read these blog posts to see how to run it on PHP and ColdFusion).

2) The server-side “Atlas” functionality that nicely integrates with ASP.NET will be called the ASP.NET 2.0 AJAX Extensions. As part of this change the tag prefix for the “Atlas” controls will change from atlas:to asp:. These controls will also be built-in to ASP.NET vNext.

Be sure to read the whole post on Scott's Blog.

3) The “Atlas” Control Toolkit today is a set of free, shared source controls and components that help you get the most value from the ASP.NET AJAX Extensions. Going forward, the name of the project will change to be the ASP.NET AJAX Control Toolkit.