Coyle has embraced full management-book style, with lots of skimmable margin notes, bulleted lists, conceptual diagrams, and flow charts. That said, he's included plenty of technical information, particularly the kind that has to do with transmission speeds, range, reliability, and subscriber capacity. He's also done a great job of providing his readers with enough knowledge of key terms to make sense of industry news articles, and of explaining how related technologies--such as Wireless Application Protocol (WAP) and WML--fit together to form working applications. The history lessons he provides, which are stories of the factors that led to the acceptance or rejection of wireless technologies in various markets, are invaluable to businesspeople eager to learn from the experiences of others. --David Wall