> > > Btw: The DLLs should be build on each platform of course.
> >
> > Er yes, thus "not portable".
>
> But the binaries are never portable, of course. The source code still could be -
> I have done this before.
>
> It is potentially as portable as the current system.

How? Please enlighten me?

And how exactly would you handle the DOS port? Or the Kodak port?
Or the Dreamcast port? Or the EPOC version?

And who would voluteer to rewrite the entire MAME source code (all 2000 drivers). Yourself?