I'm quite new to this Forum, although I've been using the Web for a while. (I found it while looking for some 3D starmap references.) One or two of your regulars may recognize me from elsewhere.

I haven't done any real planet surface maps for a few years, but maybe I'll get back into it after finishing my current projects.

In past projects, I've used Wilbur and 3DEM as well as MMPS and (of course ) Celestia, as well as various paint programs and some simple heightmap-to-3D-model programs that I wrote myself.