ComponentArt on migrating to ASP.NET AJAX Beta 1
Miljan over at ComponentArt wrote his first post explaining how their migration to Beta 1 went (i.e. great, the whole thing was done in four days). He has some very nice things to say about the platform, which we're all very flattered about: "After getting over the initial hump, we found ASP.NET AJAX Beta 1 to be remarkably well functioning and stable."
If you don't know ComponentArt, they are the publishers of one of the best component libraries for ASP.NET, and they're now building it for ASP.NET AJAX. Check it out.