In the morning session, I went to the Extending and Embracing RT talk, which was very useful. We're in the process right now of evaluating RT3 (we're presently running a mid-range 2.0.x version), and it was reassuring to see that a lot of the things I thought "Wow, that's going to mean someone spending some significant time hacking on RT to make it work the way our users want it to!" is actually (with version 3.x) more like "OK, someone's going to have to write a script or to against the RT API, and maybe change a couple configuration options".
In the afternoon, I headed over to the Jabber Boot Camp session, which was quite well done, if a bit too basic for my hopes. I was sort of hoping more for "here's how to do cool stuff with Jabber", instead of "here's how to use Jabber"... I can't really fault the organizers or speakers, at all, it was advertised as a boot-camp after all, and for the target audience, it was very well-done.