The rapid development of mobile technologies in recent years has induced more and more students and lecturers to use powerful mobile devices (e.g. smartphones, tablets, laptop computers, etc.) and learning software/apps to assist their learning and teaching, which has greatly enhanced the effectiveness of subject learning in higher education. It is, therefore, very important to investigate how mobile devices and learning software/apps facilitate teaching and subject learning in tertiary institutions, and how mobile learning can be promoted effectively in higher education. In this study, we will analyse and discuss the data collected from two surveys and follow up interviews among lecturersand students in the Education University of Hong Kong (EdUHK) about their current practices regarding the use of mobile technologies in their teaching and subject learning respectively. In the findings, we will identify effective mobile learning resources and good practices of mobile-assisted teaching and subject learning. We will also discuss the establishment of a Mobile Learning Community (MLC) to promote mobile learning and mobile-assisted teaching among students and lecturers in higher education. Some key factors of establishing a successful mobile learning community will be discussed. It is hoped that this study will shed some light on how good practices of mobile learning and mobile assisted teaching can be promoted effectively in tertiary institutions.