I've also gone through and did a bunch of optimizations and deprecated code removal on source files that are more or less finished.
Here are a couple recent screenshots of the terrain system so far. I still need to port a couple features over from Nexus. You can see some screenshots of the terrain engine in my GDNet article posted a few months ago: Box Filtering Height Maps for Smooth Rolling Hills
Aside from the editor, I'm also working on a book topic about generating and deploying software updates using a modified Levenshtein distance and QuickSort hybrid. The code is all done except for a fancier UI and deployment method, and the topic is almost written too. I am trying to figure out a good title for it though. Here are four variations off the top of my head:
Binary Patching using a Levenshtein Distance and QuickSort Hybrid
Creating and Deploying Toolset Patches
Creating and Deploying Toolset Updates
Creating and Deploying Toolset Updates using a Distance and QuickSort Hybrid.
Any ideas or suggestions?