A complete review and overview of the field, this handbook explores benefits, challenges, and the latest thinking about the major topics of this emerging discipline. It provides, in 40 chapters written by industry experts, technical information about all aspects of mobile computing, from basic concepts to research-level material, with learned analysis of future directions. This four-volume set captures the present state of the field and provides an invaluable source of reference material. It covers the entire spectrum of mobile computing: operating systems and development platforms, technologies, user interfaces and applications, and connectivity.