We review the research on mobile learning and theories of learning in order to produce a pedagogically sound set of guidelines for learners, teachers, and policy makers who are considering adopting m-learning technology. The guidelines are not primarily intended as requirements for systems design, but they will be of use to systems designers, in alerting them to the settings in which the technology will be used and issues arising from deployment with teachers and learners. The paper offers an interpretation of the nature and utility of the guidelines, and describes a process for producing new guidelines. We propose an initial set of guidelines for deploying, managing and teaching with mobile technology.