In progress design -- pictured is the paper prototype, but I don't know enough about 3d printing to get it to come out right: http://publiclaboratory.org/notes/warren/7-17-2012/failed-3d-print-mobile-spectrometer-attachmenthttp://publiclaboratory.org/notes/warren/6-12-2012/mobile-android-version-spectral-workbenchSoftware: http://spectralworkbench.org/This design is released under the CERN Open Hardware License 1.1http://publiclaboratory.org/tool/spectrometerConnect to an existing Android smartphone case, over the webcam hole. Add a slice of a DVD-R in front of the lens, see http://publiclaboratory.org/tool/spectrometer and http://publiclaboratory.org/wiki/video-spectrometer-construction for details. Using the Opera Mobile browser, navigate to http://spectralworkbench.org/capture and start capturing spectral data!