Steve Riley has updated his Blog with a discussion on the new Mandatory Integrity Control features of Windows Vista.
http://blogs.technet.com/steriley/archive/2006/07/21/442870.aspx
If you don’t know who Steve Riley is you can read his bio here. I’ve seen Steve talk at TechEd and other Microsoft conferences before and he really captivates the audience with an entertaining and useful presentation. If you ever get the chance to see one of his talks make sure you take it.