Anders Hejlsberg on LINQ and Functional Programming - Charlie Calvert has a chat with Anders on the above subject; he goes into loads of details about how LINQ came about and how they(he) solved the problem.
I wasn't exactly enthrawled for 30mins but it's certainly better than watching Eastenders!
I am really looking forward to LINQ; I do loads of database and XML programming so it should be great...I did install the May CTP but it really messed with my intellisense in VS so decided to uninstall! I know you can choose not to install it, but honestly, who wants to write code without intellisense!!