Just got back from the StackOverflow DevDays event in San Francisco. I was a bit worried that this would be overly focused on marketing FogBugz and StackOverflow. There were brief pitches on each (and I learned that FogCreek is launching hosted source control and code reviews called Kiln, now in beta and looking pretty nifty with tight integration with FogBugz) but this wasn't the focus.
I was also a little concerned that I'd be the only one there without a StackOverflow profile t-shirt. Luckily I didn't see any reputation toting pod people at the conference.
Happily the day was very code oriented, and very diverse. Spell checking in Python, smartphone development for iPhone, Nokia (via Qt) and Android, ASP.NET MVC and jQuery. I spend most of my time at the moment in C#/.NET and it was really valuable to spend a day briefly diving into different stacks and platforms.
Joel said that they'd be back next year and I'm hoping that it offers a similar diverse range of topics.