Sweet little jig, Dan. Just curious, on the saw, what is the measurement of the channel in the bottom? I wonder if this would fit a track for a track saw. I know Bosch makes track saws and sells them in Europe but have never brought them here for whatever reason. They might be made by Mafell as well — at least they use Mafell rails.
Back on topic – your jig seems like a perfect accessory and could easily be adapted to a jig saw too…did you post the sketch-up of the plans?