Radio frequency identification (RFID) and similar types of smart labels are predicted to create a massive new market for both printers and ink makers. The big question is how long will it take to arrive. At a recent conference at Cambridge, England, on RFID and smart labels, attendees heard forecasts of a rapid growth in demand for the new low-cost technology. IDTechEx, the Cambridge-based consultants who organized the meeting, expects the world market for smart labels to be worth $4 billion i...