This chapter seeks to refocus the conversation about mobile-assisted language learning (MALL) from the instructor’s perspective to the student’s. I argue that mobile “teaching” does not need to be located within a course, but that we are “m-teaching” whenever we encourage or enable learners to use mobile devices “to facilitate, support, enhance and extend ... [their] learning” (Attewell, Savill-Smith, & Douch, 2009, p. 1). This chapter will explore important concerns related to this definition, including conceptions of learning, blurred boundaries between personal and educational lives, the affordances and limitations of mobile devices, and learner autonomy. A look at the m-learning research literature will show students’ perceptions of MALL running the gamut from skeptics to believers. Finally, the chapter reports on the long-term investigation of learner beliefs and practices of MALL which is underway at Mount Holyoke College, and offers five initial conclusions.