Mobile Learning: What is Going on?

M-learning is an exciting art of using mobile technologies to enhance the learning experience. Mobile phones, PDAs, Pocket PCs and the Internet can be blended to engage and motivate learners, anytime and anywhere. However, as a quite new, exciting and promising field, there is a need for an overall review of M-learning. This paper examines four definition perspectives of M-learning and describes several existing M-learning projects, aiming to provide a better understanding of M-learning theoretically and practically.