Chapter 1: Digital Memories and the Personal Content Explosion 7 On the other hand, besides challenges in technology, user inter- faces, and societal and behavioural concerns, the personal content explosion provides huge potential in new innovations in related ser- vices and business models. Thus, our intention is to increase awareness and understanding of this broad topic, and to boost innovation by challenging prevailing assumptions and discovering unexpected aspects of personal content as a research and business domain. Therefore, the book makes good reading for technology evangelists, lecturers address- ing content and media, innovators, and those seeking new business opportunities within the personal content domain. We do not provide ready-made “become-a-millionaire” solutions, but rather whet the appetite with a variety of thought-provoking approaches from different points of view. Regardless of your background, we sincerely wish that you, the reader, will become inspired, educated, disturbed, infl uenced, or other- wise moved when reading these pages. We also hope that this book will act as a booster for addressing this vast interdisciplinary research and business domain. 1.3 Contents at a Glance The rest of the book is structured as follows: Chapter 2: Trends Towards Mobility Chapter 2 begins by introducing mobility and several aspects that tie mobile use and personal content together. We present a concise history of mobility and content digitalization, discuss several technol- ogy developments that are relevant in the context of personal content experience, characterize various mobile devices, and reveal why man- ufacturers are frantically trying to cram every possible function into your watch. Together, these trends paint a picture of how personal devices will evolve in the mobile years to come. Chapter 3: Mobile Personal Content Uncovered Chapter 3 focuses on personal content and its inherent characteristics. We defi ne the term personal content, and provide methods for content categorization based on a number of factors. We analyse personal content from a number of viewpoints, and discuss the effects mobility has on the content. Finally, we present a high-level model for address- ing different user-level aspects of personal content management. We call this model “Get-Enjoy-Maintain-Share (GEMS)”, and show how it