Agreed. I'm playing with the idea of a Cairo/Postscript type library with X, Win32, Quartz backends in Golang which would be a good foundation for such a thing

Agreed. I'm playing with the idea of a Cairo/Postscript type library with X, Win32, Quartz backends in Golang which would be a good foundation for such a thing. I have got precisely nowhere apart from trying to connect to an X server unsuccessfully though :)