Sensor and actuator networks have been the focus of a lot of research for quite a number of years now, and results in these fields had a tremendous influence on computer science as a whole. Take for example the fact that energy efficiency questions have never played a major role before, and today, there are journals, conferences, and complete research programs on this important issue. In general, sensor and actuator networks are considered to be an important part of the Future Internet, be it in the Internet-of-Things community, in Smart-City discussions, or in the more general field of Real-World Internet. Therefore, even though we have already come a long way, there is still a lot to do in order to make sensor and actuator networks usable and useful tools for everyday life in all kinds of domains. This new journal wants to provide a forum for researchers in the field to present their ideas and results and to discuss with others in order to advance the state of the art.