Abstract
Mobile learning, sometimes referred to as `m-learning' or `handheld learning,' has become a new focus for technical issues as well as pedagogical issues for instructional technology. This paper reviews literature that deals with the definition of mobile learning, distinguishing it from traditional e-learning. It also reviews the affordances and constraints of mobile learning, and addresses how mobile learning is being deployed as a supplement to traditional e-learning or in addition to a classroom. Later, the paper reviews the learning theories that are addressed in the literature, as well as the strategies employed for mobile learning development. Finally the paper reveals some of the gaps in research literature.