* New Terrain Module (disabled, search for 'usingTerrainModule = false' to reenable)

* *Much* faster terraforming (woot!)
* New "Brushes" design, so you can create custom terraforming brushes then apply those inplace of the standard tools. (ie an Erode Brush for example)
* New specialised "Flood Brushes" to do large area effects, ie, raise-area, now takes a bitmap rather than repeats the ordinary raise brush a thousand times.
* New modular file Load/Save systems -- write importers/exporters for multiple formats without having to hard code the whole thing in.
* Coming soon - effects system, ie the old Erosion functions, etc. for one-shot effects.

OpenSim/Region/Environment/Interfaces/ITerrainChannel.cs

@@ -34,5 +34,6 @@ namespace OpenSim.Region.Environment.Interfaces
         double this[int x, int y] { get; set; }
         int Width { get; }
         float[] GetFloatsSerialised();
+        bool Tainted(int x, int y);
     }
 }