They've got an interesting stretch goal though: "if we get to $100,000 -- a 'stretch goal'. In the spirit of enabling open collaboration we'd like to make it possible for people to make their own Spectral Workbench-based apps". I'm thinking a Spectral App Platform API would be pretty sweet. "Imagine a "Spectral App Store" where wine enthusiasts can develop their own testing suite for wines, gardeners for grow lamps, and coffee connoisseurs for coffee -- each looking for specific wavelengths or patterns *specific to that application*." They're not that far away from it either.

Some of the people that have early prototypes are claiming 1nm precision. They've mainly been using CFLs for calibration because of the variety of consistent spectra points and how common they are. Not lab grade, sure, but decent enough for home use.