Telerehabilitation is an emerging field that aims at optimizing the process of rehabilitation by using efficient information exchange methods between different stakeholders. A wide range of technologies have been developed to facilitate this exchange using monolithic application architectures. These architectures are often the reason why projects fail due to disproportionate investment of money and time as well as lack of knowledge. In this paper, we present an overview of projects in the field of telerehabilitation and telemedicine based on the so called CHOPIN architecture, a toolbox for composition of telemedical services into high quality applications. It facilitates reuse and leverage of existing services and components, thus reducing costs and work efforts with each new application that is implemented on the basis of CHOPIN. Our future prospects will focus on even stronger service orientation of the approach developing the whole technology towards a cloud-based approach driven by the metaphor of "Reha-Apps from an AAL-eHealth-Store".