We have made a lot of progress since the early product videos. We are demoing it in SF at the AA hackathon today if you want to see it in action. Nod is the only pixel accurate gesture control device in the market.
I'm in Germany, so seeing it isn't remotely an option. I'd appreciate the hell out of videos though. Youtube is cool and modern phones have really good cameras. ;)
What exactly do you mean with pixel-accurate?