Fred Knight moderated a session entitled "Convergence: The Key To Collaboration" on the infrastructure track during which a lot of discussion over the underlying network requirements to support real-time communications were brought up. As with many discussions of this sort that I've seen in the past, there was considerable debate over the ability for the public Internet to support real-time services (those of us using Skype would argue that the public Internet is often just fine).
Finally, I moderated a session with Dr. Henning Schulzrinne of Columbia University and Peter Saint-Andre of the Jabber Software Foundation. The purpose of the session was to debate the roles and merits of SIP/SIMPLE versus Jabber XMPP for real-time communications. While all the attention right now is on SIP/SIMPLE, Peter pointed out that Jabber has an installed base of over 10 million users including significant adoption by the U.S. government and the financial services sector. In addition Jabber protocols are often extended to deliver sevices beyond IM. Both panelists were in agreement that there was a role for both protocols in the future and that co-existence and interoperability could be achieved.
After my session I got to see a few minutes of my colleague Peter O'Kelly's presentation on collaboration interoperability before making the 7 hour journey back to the Northern Virginia area (yes, 7 hours from Manhattan to Virginia), courtesy of a 2 hour flight delay, traffic delays that kept me from an earlier flight, and construction delays on the ride home.
As I noted earlier, the discussions from all CTC sessions are being continued at on the CTC Wiki.