Assessing the impact on learning of the use of mobile devices and associated applications is a complex challenge. This article reports on progress to date in a longitudinal study using a design research approach with three cohorts of 800 students each. Results are encouraging in terms of learning enhancement through select mobile application by a cadre of students but discouraging in terms of sustained use by the majority of students. Issues raised include student appreciation of deep learning and time management as well as aspects of intrinsic and extrinsic motivation. Results demonstrate the need for integrated, pedagogically driven instructor and institutional efforts. Next steps are presented.