On behalf of my co-editors and our authors, thank you for joining us in our explorations of the space of Mobile Media Learning (MML). The bulk of this book consists of reports from the mobile frontier: students, educators, and researchers who have explored many educational contexts by inventing with mobile technologies. This is bookended by some editorial material to add context. The first chapter situates our book as part of a continuing conversation about MML and sets forth our mode of presentation, a co-edited volume of individual stories. The second chapter positions the study of MML within a larger historical picture, where we consider Seymour Papert’s take on the computer as a tool for educational self-determinism as analogy and history lesson. In the third chapter we descend from theoretical to practical consideration of MML, providing a short manual for those who wish to design their own learning projects using mobile technology. Together, this introductory matter gets at the what, why, where and how of MML.

As we get to the who of MML, we have grouped the contributed chapters in this book into sections.

• MML Platforms - Projects showcasing software that enables regular people to act creatively in the name of MML.
• Connecting to Classrooms - Projects where the main context for MML is a formal educational setting such as a classroom.
• After Shool and in the Summer - Projects whose main setting is informal or semiformal learning such as a summer program.
• Fields of Dreams - Stories that focus on the development and use of a single exploratory MML design. These are all Augmented Reality games designed for public audiences.