Just a note that the 2010 Propeller expo is coming up! I think Jeff is planning three, the first will be in Chicagoland (which I've learned means 'Outside Chicago') on May 15. The other 2 will be later this year in Norwalk, OH & Rocklin, CA. There's robotics stuff as well as more general microcontroller projects, food, presentations, etc. Last year, the AttoPilot guy did a presentation about his awesome project (youtube video), which I thought was really interesting.
More info on the Parallax forums>>>
I did the T-shirt design this year: Here's the front: