The phones combine satellite-based navigation, precise to within 30 feet or less, with an electronic compass to provide a new dimension of orientation. Connect the device to the Internet and it is possible to overlay the point-and-click simplicity of a computer screen on top of the real world.
[…] Only two American carriers are using the G.P.S. technology, and none have announced plans to add a compass. As a result, analysts say Japan will have a head start of several years in what many analysts say will be a new frontier for mobile devices.
“People are underestimating the power of geographic search,” said Kanwar Chadha, chief executive of Sirf Technology, a Silicon Valley maker of satellite-navigation gear.