OpenPrinting Vector drivers can be plugged into GhostScript

It appears that the OPVP (OpenPrinting Vector Printer device in ghostscript) is already implemented, even in ubuntu edgy!

The drivers used by the OPVP device are actually dynamically loaded libraries implementing this API:
ftp://ftp.pwg.org/pub/pwg/fsg/vector/pdapi-spec-1.0rc1.pdf

I would be fun to try to implement this and hook it up to my simulator.