In this article we outline the fundamental principles of a service delivery platform and the business model to be addressed in mobile convergence. The emerging standards and reference architectures are presented, and their short-comings are discussed. We outline the key requirements that a service delivery platform is expected to address from an operator perspective and summarize the key technology design points. We also outline several future trends in how this emerging mobile technology is being deployed in various application scenarios. This involves straightforward mobile news services, through gaming, and complex interactive multimedia scenarios for the mobile device. These new services make further convergent demands upon three technology domains: the mobile network, IT systems, and the content/media sources.