Book excerpt: This volume draws together all the articles published by the International Journal of Mobile and Blended Learning in its second year of publication (2010). As the use of mobile technology for personal and business applications continues to grow, it naturally follows that educators and researchers will investigate the use of mobile devices for knowledge sharing and learning. Refining Current Practices in Mobile and Blended Learning: New Applications provides perspectives on new approaches to learning theory and practice in increasingly mobile, immersive environments. Situated at the intersection of theory and practice, this book provides foundational research on the development and implementation of mobile games, the delivery of mobile and blended learning, and philosophical underpinnings of this emerging discipline.