Old news in the blogger scene, but it's nice that ATLAS
ASP.NET AJAX Framework has finally RTM'd. It's a day late, IMHO, but better late than never. I've been pleased with the progress when comparing this to the earlier versions. It started off a bit slow and clunky (again, just IMHO) when compared to some of our partner's solutions, but it's nice to see it completed and polished.
I've been asked a few times about when to use the ASP.NET AJAX framework versus other tools, like Telerik's AJAX controls.
The short answer is: it depends. I've used Telerik's stuff and it's great. The great news is that Telerik's controls are interoperable with ASP.NET AJAX. If I were developing a solution that largely integrates other Telerik's controls, I'd likely stick with their platform to keep it homogenous. If I were starting an ASP.NET project from scratch, or looking to embed AJAX functionality within an existing application not already using any third party controls, I'd use ASP.NET AJAX.
Go forth and asyncronize!