I remember seeing this at a tradeshow and wanting to buy their $99 developer kit, but they disappeared from the market before I got around to it :-) I asked th

I remember seeing this at a tradeshow and wanting to buy their $99 developer kit, but they disappeared from the market before I got around to it :-) I asked them about the "hundreds of chemicals" and they claimed 10 or 12 were enough for most scents. (Compare display gamut to full range of visible light.)