Here is an update on the Unity front. Let's see if a screenshot is worth a thousand words:
This is the same terrain generation you see in other screenshots and videos I have posted. This image in particular was not created by me, but by some very talented guys who took the Voxel Farm engine and are using it from Unity.
The sky and clouds in the screenshot is a box with a static image on it, it is not related to the clouds and sky streak of posts I had earlier. The thing is, once you are in Unity there are several plugins that will do real-time skies for you. Actually there are plugins that will do real-time anything for you. That is the point. We are hoping to become another one.