I got a talk of the same title accepted to php|tek 2009 and used this session to figure out if I can talk and type at the same time, since I was warned by everyone that this was a Bad Idea and I figured if I can do it in lighting talk format, I can do it anywhere! It turns out I can do both and that it really isn't very interesting to watch. Later versions of this talk had no typing, just pre-prepared output shots. No slides, because they were just a title and then I overlaid the terminal window.
Blog: Speaking at GeekUpLeeds