The June CTP release of "Atlas" is now available at http://atlas.asp.net. This release includes bugfixes plus some additional new functionality including dynamic update panels.
Atlas continues to move forward with this release. We expect to do another preview in approximately 6-8 weeks and are using the enthusiastic feedback from the developer community and helpful suggestion and bug reports to improve it as we move ahead. If you're just starting out, be sure to check out the Atlas website where you can see live demos, videos and find all the documentation you need to get started.
Release notes for the ASP.NET "Atlas" Technology Preview June CTP release
UpdatePanels can be added to a page dynamically throughout the page lifecycle, including UpdatePanels inside templates. UpdatePanels now also work inside WebParts, and WebParts can be inside UpdatePanels.
UpdatePanel will preserve cookies set during an async postback when Response.Redirect() is called. This fixes Login control scenarios where an authorization cookie is set and the user gets redirected to the previous page.
ServiceMethod uses default error handler if none specified
XsltBridgeTransformer now works with VirtualPathProviders
DBNull.Value now should be serialized as null
ServiceReferences now support optional InlineProxy attribute for generating service proxies in the page rather than through a serviceurl/js script reference.
Fix for scenarios where web service proxy contained the wrong port (webfarms, port forwarding)
Drag and Drop
Drag and drop will no longer produce debug output
Interactive HTML elements (input, button, textarea, select, label, anchors with an href) can no longer be dragged directly
Client-side data: SaveData fix for strongly-typed DataSets