This document summarizes a study on students' use of mobile phones as learning tools. The study used qualitative research methods like questionnaires, interviews, and observations to analyze how students appropriated mobile phones for learning and how the phones mediated learning activities. The study examined students' use of mobile phones to access learning content, produce multimedia, and participate in SMS-based learning scenarios. Findings showed that using mobile phones improved students' language skills, engagement, and motivation for individual and collaborative learning of Portuguese and French.