It's not often that one sees their name right next to Anders' (especially considering that I'm a VB programmer :-)), but check out this LINQ article in the current issue of Redmond Developer News. While the focus is Anders and this great technology he and others (and always with a nod to Alan Griver) are bringing to Visual Studio .NET, I was asked to give some developer perspective.
I'd also like to say that I wasn't literally jumping up and down at PDC. :-)
I know that I have had the same reaction when watching Scott Guthrie present on LINQ to SQL. I think I'm jumping up and down with joy, but truly my butt remained glued to the chair.
It was fun talking to Michael Schwarz about this, but I think I may have overwhelmed him with my geek technical perspective of LINQ from which he was trying to extract key points for dev managers. He seems to have done a great job.
Michael talked to another developer, VB guru Bill McCarthy who gave him a great analogy quoted at the end of the article.