I was just looking for the eps export today.
I remembered an old workaround in autoCAD that allowed you to print to .eps. Rather than a save as.
Seems to work here as well. The difference being, you need to set up the printer in windows rather than using the wizard in CAD.
Graphisoft actually has a tutorial on how to do this.
http://www.graphisoft.com/support/archicad/archiguide/epsfonwindows.html
This works somewhat. Though I don't have the paper sizes I would like, which leads to some scaling rather than direct 1 to 1 export.
This is frustrating as pdf does not offer the kind of vectorial ability a postscript file does.