A client program compatible with the INDI standard (see http://indi.sourceforge.net) for remote telescope and device control. It works under Windows as well as Linux. It is writen in Python and uses the GTK in order to display the GUI.
RTS2 is project to create an open source environment for control of a fully autonomous observatory. It is running about dozen fully autonomous observatories. Its modular design allow easily addition of new devices (to already huge supported HW list).
AstroMate is a project for automating repeating astrophotography tasks, such as equatorial mount polar alignment and target centering, by integrating existing tools and especially plate solving to the ASCOM telescopecontrol interface.
This project has been replaced by AstroTortilla.