The companion cube was selected because cubes are often used to test a 3d printer (http://www.thingiverse.com/thing:477) while the enterprise was selected to test whether the script was capable of handling something on a rather large scale with high complexity.

Now that the tests are out of the way, it's time to print the lairs and cities of which you speak.

It will be made available soonish. We want to clean it up/make it a tad more user friendly first. And that will probably be after the last shuttle launch this weekend.