I recently gave a talk to the Chicago Flex User Group, and incidentally the LA user group. That last was quite unexpected, and simulcast as I gave the talk.
I spoke about RTMFP on mobile devices and computers using Adobe AIR and a local network to form a Peer To Peer network without a server.
I have the slides posted up on Slideshare, and the audio is here if you care to take a listen.
How to make P2P apps without a server? RTFM... no RTMFP. [ 53:30 ] Play Now | Play in Popup | Download