The growing popularity of the term ‘mobile learning’ brings with it a shift in focus that may impact on educators and trainers: it is mainly learners who carry the mobile devices and move around with them, whilst the term ‘mobile teaching’ is hardly used at all. This separation of meanings contrasts sharply with the way that ‘web-based teaching’ and ‘web-based instruction’ have generally been used with equanimity alongside ‘web-based learning’. So our starting point and our focus is an emphasis on learning, but our take on mobile teaching is to redefine it as facilitation and support of mobile learning.