The final presentation of the day yesterday was a Birds of a Feather group discussion about what was important to make an agile project succeed. It was lead by Chris Sims, who did an excellent job facilitating. I don't know that I necessarily learned anything, about agile, but I did learn another way to give a retrospective, which in many ways was what Chris led. Going around the room and giving everyone a turn to mention something (after having them write up a list) seems like it would be very empowering to those who often don't speak up - I'm definitely going to give it a try the next time I facilitate a retrospective.
If you're keeping track of fads, Scrum and 2 week iterations are the most popular way for people to do agile, at least according to the show of hands...
Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in any way.