http://tinyurl.com/2u826 is shortcut to video.
This video really shows how clever the R&D for Longhorn was and why some of the more unusual capabilities (like the DirectX Magnifying vector tool) actually enable everyday apps to be amazing.
While Microsoft is making some mistakes in the community (and with licensing terms and security and MVPs) the quality of this demo app really demonstrates that Longhorn apps are truly way ahead of what I see on the bridge/vid screens of StarTrek.
I really get goosebumps when I watch this video and a careful study of the app and watching the video more than once reveals many capabilities that are not obvious at first glance which are quite profound about the native capabilities:
* secure email where you know the recipient
* peer-to-peer sandbox apps
* Digital Rights Management in a constructive way - i.e. this email destructs in 15 days
* multiple secure signatures of a contract where all parties can see the signatories's approval real time
[Charles M. Carroll of LearnASP.com]