See Adobe AIR 2's Best New Features Demoed in 9 Sample Apps

5. Peer-to-Peer Networking Capabilities

Adobe AIR 2 also adds support for new networking capabilities including UDP, secure sockets, and peer-to-peer. To demonstrate the possibilities, Adobe released KeePIPE, a javascript app that lets users on the same network share files using peer-to-peer technology. It also lets VMWare users transfer files between a virtual machine and a host computer.
(Link: See Adobe AIR 2′s Best New Features Demoed in 9 Sample Apps)