I gave a talk at NotCon 2004 on SpotCodes, and it got covered in Wired Magazine!
Of course, I shared the stage with a man telling the time via a prawn sandwich, so the limelight wasn't all just mine...
Anil Madhavapeddy and his colleagues at High Energy Magic think camera phones should be used for more than taking bad pictures. The company's SpotCode reader software lets camera phones recognize a circular tag and then communicate via Bluetooth with a local server.
-- Roxanne Khamsi for Wired