Databases supporting time dependent and continuously changing geometries, called moving objects databases, have been studied for about 15 years. The field has been flourishing and there exist many hundreds, more likely thousands, of publications. However, very few of these results have made it into systems (research prototypes or commercial) and are available for practical use today. It is not that the publications are purely theoretical. In most cases data structures and algorithms have been proposed, implemented, and experimentally evaluated. However, whereas there exists a well established infrastructure for publishing research papers through journals and conferences, no such facilities exist for the publication of the related prototypical implementations. Hence implementations are just done for experiments in the paper and then usually abandoned. This is highly unfortunate even for research, as future proposals of improved algorithms most often have to reimplement the previous tec...