To ensure the success of future mobile learning environments, it is essential to develop affordable and effective applications that are well matched to the needs of the users. Depending on their unique requirements, effective mobile learning applications should keep up with their learning activities rather than simply providing them with conventional course materials on mobile devices. As an early exploration of this line of study, this chapter designs and evaluates a location-aware learning organizer that helps university students to manage their learning activities on campus. We confirmed that this situated learning support experience could lead to markedly different in-depth learning activities. Empirical testing of the learning organizer also revealed some potential opportunities for the learners to be more engaged in further mobile learning activities.