Mike Ammerlaan has started posting to the world, and it has a very interesting post on integration of ASP.NET AJAX and Sharepoint.
“Microsoft ASP.NET AJAX 1.0 provides great building blocks for building rich Ajax-enabled applications. Combined with the power of the SharePoint platform, and knowing some of the integration limitations, you can build powerful Web2.0 applications that bring together the best of both of these technologies”
You can find this post here.
Tech Talk PT 
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