Last night I blogged about my TravelNews demo site and I've already had requests for a version that works with the latest ASP.NET AJAX bits. So here you go. That download link now gives you the option of downloading the Atlas July CTP version or the ASP.NET AJAX 1.0 Beta 2 version.
What did I have to change?
That was it. Bob's your uncle and job's a good 'un.
There is a good document available on the ajax.asp.net site describing how to take Atlas applications and update them to ASP.NET AJAX.