http://mashable.com/2017/01/07/smartphone-with-scio-sensor-changhong-h2/
Relevant bit:
Another application is verifying the authenticity of drugs. At a demo at CES, I saw the phone scan what I was told was a real Viagra pill and a knock-off. To the naked eye the pills looked identical, both light-blue diamond-shaped pills. But the H2's SCiO scanner recognized the impostor in seconds, calling it out with a bright orange screen.
A tiny portable spectrometer! I've been reading about these for a bit. Rad. I wonder how accurate this iteration will be/if it will need to be calibrated?
You can buy similar devices that interface with your computer already, and their pocket spectrometer is already for sale (a few hundred bucks). I haven't read any reviews of them yet, though. I'm about to go do that!!!