Plus, bonus: definitive answer to the question of how to be a software craftsman!
I had a great time talking to them, and it was very encouraging to see the number of hands that were raised when I asked how many people practiced test-driven development. Thanks to various influences, test-first and test-driven development are pretty common when you talk to people active in the ruby community.
After the talk, we went to a bar. Thanks to everyone for the great conversations and ideas.