This article explores the potential of mobile learning in adult education with a particular focus on identity formation and self-representation. It draws on the mobile learning experiences implemented within MyMobile--Education on the move, a European project (2010-2012) whose main purpose was to develop guidelines for mobile learning in adult education. This was achieved through a series of national workshops aimed at testing the use of mobile devices as cultural and learning resources for identity (trans)formation by and social empowerment of adults. In this context, the article addresses two particular cases: workshops conducted in Italy and Britain. It begins with a discussion of the concepts of adult education in relation to mobile learning and identity formation, and then moves to an analytical description of the workshops, exploring participants' self-perceptions and productions. Based on this exploration, it concludes with a reflection on the extent to which adult learners' participation in the mobile learning experiences that the project designed for them supported the formation and development of their identities; it also offers some recommendations for future research in the field.