David Benhaim and I (well mostly David) have been working on this six legged spiderbot.  At the moment it can track faces using a built in webcam.  However it can’t walk yet.  We plan on adding a PICO motherboard on top to run all the code.  However there were some parts missing from the box (they have since been shipped) that hindered that process.  It’s not perfect yet, see the not-very-good video here: