I've been learning a bit about the Peer-to-Peer SDK that Microsoft released the other day. It's really an interesting way to build distributed applications that scale to large numbers of people.
One interesting thing that I learned in discussions is just how security aware Microsoft has become. The P2P kit puts a private key on your user's system. Unfortunately, that makes it very hard to build a system that would let a user “roam” from system-to-system, but it also makes it a lot more secure.
I wonder what kind of new applications people will build using this new technology. [The Scobleizer Weblog]