In case anyone missed it, Microsoft released the April CTP of Atlas, their Ajax toolkit. I have been using the last build to work through some test projects and the took kit is fantastic.
I know it has been reported the amount of the data is large for Atlas-enabled pages but the performance is good. I am sure Microsoft will optimize this as the debug code comes out and things will get smaller.
There are also some great sample applications available on the Atlas web site. Is anyone using this framework? If so, what are you building?
Rick Strahl has a great example of using Atlas for a chat web service here.