OK, I know I get excited about some of this stuff even when it seems a bit esoteric, but LINQ will be something that will be of incredible benefit to us developers. Here is a link from MSDN TV that shows Paul Vick and Amanda Silvers demonstrating the power and simplicity of LINQ. This demo is in VB.Net and before Qasim sends me a jab about it, just take a look at how well LINQ and the new XML capabilities integrate with VB.Net.
The demo runs less than 30 minutes and is more than worth the look. This is great stuff and will really make our lives easier.