Call it the "new new urbanism," a fusion of telecommunications technology and urban design that is at once a 21st century zeitgeist and a familiar riff on the age-old interface between cities and technology. "From an urban design perspective, a lot of technologists are just discovering public space," says Dennis Frenchman, chairman of the master of city planning program at the Massachusetts Institute of Technology. "It's an old story that goes back hundreds of years." A consultant on Seoul's Digital Media City, Frenchman himself is part of a very new story. The DMC will incorporate all-digital signage, with programming capacity accessible to the public, personal positioning services, intelligent street lamps and transparent storefronts that will reveal a building's inner uses as well as real-time Web feeds from sister cities.