This groundbreaking resource introduces practitioners to the emerging field of Ubiquitous Positioning - positioning systems that identify the location and position of people, vehicles and objects in time and space in the digitized networked economy. The future and growth of ubiquitous computing will be fueled by the convergence of many other areas of technology, from mobile telematics, Internet technology, and location systems, to sensing systems, geographic information systems, and the semantic web. This first-of-its-kind, forward-looking volume explores ubiquitous computing from a convergence perspective, offering a road map to this burgeoning field.