I got Rasterbator to work properly in Linux. It uses some convoluted way to grab the working directory (I'm not even sure why it needs it), and ends up using "\\" as a directory separator in a few places and "" as the root. Without delving too deeply into any of this, I changed both these to System.IO.Path.DirectorySeparatorChar and wrote a Makefile because I have no idea how to use any of the Visual Studio stuff with Mono. Anyway, the archive's here. It contains a precompiled version, which should work.