What are all good GUI & plotting package options for Maxima?

> If I understand the question correctly, the concern is that if we
> wished to tie the system very tightly to Maxima, thereby making
> signficiant changes to the system, there are quite a number of things
> we would have to worry about.  GPL or something more liberal works
> fine, but the restrictions on gnuplot could cause problems if we want
> to pull out pieces and integrate them.

I agree that the GPL and the Gnuplot licenses do not allow us to
commingle the two code bases.  But it is sound software engineering
practice to keep the interface as well-defined and simple as possible
anyway.  This preserves the freedom to swap in a different plotting
package.  It is also the best way to contribute to the common good: if
our improvements to the plotting package are too tightly tied to Maxima
in particular, other users of the plotting package don't benefit.

       -s