can I display Mac applications remotely using X?

[Brian Holtz]

In article <650 at studsys.mu.edu> stevej at studsys.mu.edu (jovanovic) writes:
>
>Also, how stable is it, and what kind of toolbox support does it
>provide?  Can it be run under Multifinder, so that Mac OS app's
>can be run in the background?

Specifically, I'd like to know if Mac OS applications can run under A/UX
in a networked window system like X, so that, say, I could fire up
Excel on my Mac but have it accept input and show output on another
workstation's display.

I've heard that there's an X server that runs under Mac OS; would this
be a way to have regular Mac applications display remotely on other
workstations?  Is there _any_ way to do such a thing?