So you've built a wonderful terrain with lots of trees and other models on it, and now you'd like to bake a lightmap onto it? You've probably found that in Unity Free, realtime lighting (hard and soft shadows) is unfortunately not supported.
Illuminate a simple warehouse interior in Max with Mental Ray: indirect lighting, camera glare, volume light.
Using terrains in Unity brings you several advantages, one of which is the possibility to scatter trees and grass or other foliage over the terrain with a paint brush, rather than positioning foliage models by hand.
If you're using GMap.NET to add maps to your .NET application, then the time may come when you want to calculate the area of a polygon on your map. In my case, I have an application that allows users to actually create polygons using a GMap.