I agree: great shame Peter, that the Geomag company couldn't let out the beta
software for feedback ... I mean Google lets beta software out all the time! and
look how well they are doing.
Graham, there is a program that does some of what we want, called "Stella",
written by Robert Webb.
- http://www.software3d.com/Stella.php
It doesn't, however, allow arbitrary assembling of pieces, which is what
we want here: a kind of LegoCAD for Geomag. But you can render images
of the standard polyhedra in a ball and rod form.
It's also rather expensive - I've only used the trial because of that.