Some of you people used online plotters, even with collaborative nature. A web application where user can plot text, images and share it applications like skrbl or scriblink. But today I saw a mechanical text plotter, which I feel very interesting. The tool consist of micro controller and some mechanical motors to control and plot texts. The pen in hanged in two rubber belts and two motors, they called it bipod.
Check out this youtube Video.
This is a research product, but I guess this product need to be merchandised. Anyway the mechanical parts for this are heavily complicated when compared to its electronics parts. The device is not so grim but it is cool.