Mobile or cell phones, handheld computers, RFID tags or even implants. What could or should the wireless future be? Already, mobiles are an essential part of life for two billion users. We are told that wireless devices will help us to communicate and relate in better ways, become more creative, better educated and more efficient and effective in our working lives. Yet often with new developments or devices the hype is followed by some small successes, and a great deal of disappointment. This book is about catering to the everyday needs people have, about shifting the design perspective away from technology and to concentrate on usability; in other words, developing interfaces and devices with a great deal of sensitivity to human needs, desires and capabilities. Presenting key interaction design ideas and successes in an accessible, relevant way, and containing exercises, interviews and case studies, this book is a must have for students on Mobile Design and HCI courses, for designers keen to make the mobile even more powerful and easy to use, and for anyone who wants to broaden their understanding of effective human-centered design in the increasingly vital context of mobile systems.