The tongue, besides being creepy, offers plenty in the way of research opportunities, as you know if you're a regular visitor to this space. In the past we've seen a tongue-based computer interface or two, the BrainPort sight-via-papillae solution, and this week, at the American Chemical Society's annual meeting, researchers from the University of Illinois at Urbana-Champaign introduced a sensor about the size of a business card that detects and id
