When you are working with ADO.NET Data Services, errors are returned through the HTTP mechanism. Right now the most straightforward way of handling any errors on the client is by catching a WebException and using it. Something that is a bit obscure...

If you have the default settings on Internet Explorer 7 for Feeds, the ATOM results returned by a Project Astoria service won't make much sense. You can always use View | Source to look at the payload, but there's an easier way. To view the results...

Scott posted about this yesterday, but you need to look into the bulleted list to see that the ASP.NET 3.5 Extensions CTP includes updates from the last Project Astoria release. And of course, if you've been keeping up with some of the posts that have...