Microsoft announced naming map for ASP.NET codename ATLAS (Microsoft AJAX implementation) that is currently in last CTP pre-beta statust. Final release is expected until end of this year.

Scott Guthrie on his blog described in detail roadmap for  ASP.NET Atlas development. About naming, in short:

1) Client side ATLAS libraries will be named Microsoft AJAX Library. They should work with any browser.

  1. Server-side part of ATLAS that relies on  ASP.NET will be named ASP.NET 2.0 AJAX Extensions. All tags prefixed with atlas: will have prefix asp:.

3) “Atlas” Control Toolkit will be named ASP.NET AJAX Control Toolkit.

For more information look here.