The advancement of mobile web technology and cloud computing give wider space for improvement of mobile learning system practices. This paper presents a new conceptual model for to-be developed learning management system called Mobile School. This system allows the users to performe teaching and learning activities via both personal computers and mobile devices. This new model is proposed to solve three main identified problems, mobile device physical limitations, ineffective and limited communication among teachers, students, parents and school administrators, and usability problems with the existing mobile learning systems. Thorough literature studies have been conducted to identify the problems of current mobile learning systems and practices, and to determine the possible theories or concepts that can be integrated in the new conceptual model to solve the identified problems. As a result, a new conceptual model that incorporates all necessary concepts, theories and principles has been proposed. The detailed discussions will be presented throughout this paper. © 2012 IEEE.