The convergence of the Internet and mobile networks has created new opportunities and applications. Considering mobile business only as an extension of the traditional web can lead to missing out on unique and differentiable qualities for new value-added opportunities. Mobile banking is considered as potentially one of the most value-added and important mobile service available. The chapter examines the technological changes in mobile networks and the innovative attributes of mobile Internet. It advances the theoretical framework of innovation in services to develop a customer centric analysis of m-banking value proposition. The chapter goes on to discuss critical factors in the diffusion of m-Banking and explores reasons of failure and further prospects of success.