Preface
The mobility provided by the proliferation of wireless devices presents a new class of opportunities and problems for application developers. Mobile applications must be much smarter than desktop applications. As a mobile user, you want personalized applications that instantly know where you are, what things are around you, and how you get to them. Application developers face many challenges in building these applications, including how to pinpoint a user's location and then retrieve relevant spatial data from a digital map database sometimes as large as 20 gigabytes with the sub-second response times necessary for a mobile user.
A mobile location service platform requires knowledge of three highly complex technologies: mobile telephony, ...
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