AMMDI is an open-notebook hypertext writing experiment, authored by Mike Travers aka mtraven. It's a work in progress and some parts are more polished than others. Comments welcome! More.
The blimp was based on a commerical RC kit we found; we augmented it with some ultrasonic rangefinders from a polaroid camera kit, and interfaced the sensors and motors to a visual programming language (the Hookup! language developed by Dave Levitt).
Another reference point, Dave Levitt's Hookup, an early tool for doing real-time visual programming for music and animation. I built some components for this, including a robot blimp interface.