So What Should I Say At PyCon?

I’m speaking at PyCon on Saturday. The blurb I sent in says:

What We've Learned From Building Basie Since September 2008, teams of undergraduates from half a dozen different universities have been building a Django-based replacement for Trac called Basie. This talk will present what they've accomplished and discuss what we've learned about getting junior developers who are juggling half a dozen projects at once to build production-quality code.

I’d enjoy hearing from past and present project students—49ers, GSoC alumni, and everyone else, not just those who worked on Basie—about what they got out of the various project courses I have run, and why.