Thanks for all the kind words. I would love to work on this more but the hackathon sprint was really all I had time for (note the newborn in the video...) without more backing / support. I was really bummed that the hackathon rejected the submission, because it provided some Google support if you win.

If anyone knows of a way to develop this... the code is on Github, and I have a roadmap in mind, but as we all know there's a huge gap between hacky prototype and "works smoothly for other users".