This was discussed on muffwiggler with the idea of getting some clones made. I designed my own version of the circuit based on a description of the functions.
My version has 32 LEDs, gate/CV controlled up/down counting ability and will process audio or CV signals between +/-7V.
A friend dropped off his module for me to have a look at, I added the resistors to each of the 32 I/O connections and noted that Driscoll's logic was somewhat different to mine, although I am quite sure the result is the same.
This schematic is UNTESTED, when the PCBs are made and checked I will update this post.
update: a bit buggy this one. New better, faster, simpler version is HERE