I know there hasn't been an update in a few months. That's because I am working on getting down to one to one scale. Along with that will be terrain (where available), atmosphere, and the ability to walk the surface of planets. The next release (phase I) will be 1:1 scale and low resolution terrain for Mars. Standby.

Here are some preliminary screen shots:

Mars with low res terrain.

Mars surface, low res (1 GB, 11GB exists).

Phobos at 1:1.

Asteroid Itokawa at 1:1.