The book presents an overview of the different development strategies and tools for different Pervasive Computing platforms. In order to ease the planning and development of new solutions, concepts and considerations are explained specific to a variety of different target environments, such as handheld computers, horne networks, smart phones, and others. FinaIly, this book has a strong emphasis on the business aspects, such as the new generation of services, delivering added value to a growing number of customers. E-Business, pr ivate horne, finance, or travel will not be the only industries which will change their face entirely due to a new dass of mobile computing devices, making the customer omnipresent. We try to give an impression of what Pervasive Computing is about and how it differs from conventional computing. We avoid losing ourselves in details, but provide a way through the jungle of terms, concepts, standards, and solutions instead. The major goal of this book is to put the various facets of Pervasive Computing together to a consistent and comprehensive view.