This chapter explores the implementation of mobile learning in Asia, with a particular emphasis on K12 education. A series of 17 individually authored or co-authored country-by-country reports gives an overview of the penetration of mobile devices and the mobile Internet in society and in education. These reports indicate the ways in which such technologies are and are not being employed in teaching and learning, reflecting on the roles of the public and private sectors as well as schools and teachers in their implementation. Common mobile educational practices and their pedagogical underpinnings are outlined, as are associated research projects and publications. The chapter concludes by integrating insights from these reports to establish key regional trends and make recommendations for future mobile learning research.