Researchers at MIT have developed a new type of information tag called a Bokode. The tag is 3 millimeters in diameter and can encode information about a product or a venue that can be read by a standard mobile phone camera. The Bokode is a tiny light-emitting diode with a mask and a lens. A camera can read information directly from the front of the tag or from the side.
The creators of the Bokode envision many uses, one of which is interaction with Google Streetview. Information gathered about locations via photos taken by Google vehicles would then be accessible on Google Maps (Jonathan Fildes, “Barcode Replacement Shown Off,” News.BBC.co.uk, July 27, 2009).