I buy a lot of NEATO XV-11 ROBOTIC vacuum cleaner and take apart and sell the parts mostly the LASER
A looking at the idea that DJ uses to control IROBOT ROOMBA with serial and it can be done the same way.
FEW hack sites has info on the serial commands and they have it controlled by another computer
NEATO XV11 if you read the many reviews on it ,its a lot better then ROOMBA ,one main reason it uses a LIDAR tracking system ,where ROOMBA uses a IR BEACON system
SO it will make a great robotic base,used ones on ebay are about $100
MAY be latter DJ can make a Movement Panel for it,but for now it can be controlled by serial using scripts.
LIKE to hear any good or bad comments on it,and will be looking at the code soon,
do need to open it and solder wire to ground and TX line.