This was my first time at OSCON. It is a good place to get exposure to different software and ideas, meet interesting people, and have a good time. The slides from the presentations are available.
Creating Passionate Users
The Creating Passionate Users session/tutorial did impact me in a surprising way. Although it was geared towards creating passionate users, it seems that it could be applied to developing passionate developers as well. Hmmm, I will have to give this one some more thought. Either way, it made me think a bit harder in this area than I had before.
A Starry Afternoon, a Sinking Symphony, and the Polo Champ Who Gave It All Up for No Reason Whatsoever
Why's session was the craziest and perhaps funniest session I have ever been too. I can't quite figure out how to describe it. All I can say is go watch some of the videos available.