BTW.: there do exist "compiz DMX plugins", i.e.
However, i have no idea what these plugins are doing and it's not easy to find
out trough google :-)
From what i understand, DMX basically also requires xinerama for a full desktop,
but maybe it is possible to get around this on window manager level using these
compiz DMX plugins?
I guess it would be possible to use DMX locally on a single machine.
Would be interesting if such a solution would be performant enough.