I’m looking into adding support for XEP-0174 to XIFF. XEP-0174 defines XMPP for direct client-client communications using Bonjour/Zeroconf as a discovery mechanism. Curious if anyone else would find this useful?
AIR now supports DatagramSocket and ServerSocket, both which are necessary to support this kind of thing. DatagramSocket for Zeroconf mDNS service discovery (http://renaun.com/blog/2010/03/using-air-20-to-find-services-through-mdnszerocon f-bonjour/) and ServerSocket to listen for incoming connections.
So obviously, this would be an AIR-only feature.