I used to work in the mapping industry and I'm interested in seeing what capabilities Blender has in importing GIS based data sets and blending them together.
Ideally I would like to be able to import .shp, .jpg, Collada, .NITF, and .tif files and merge them to create a terrain using real world topology/hydrology/etc.
I just recently found a Blender plug in off of Github called BlenderGIS which provides .shp functionality. I would love to be able to import LIDAR or some other topology maps and drape a satellite/airplane image over the lines/points to make a 3D map.
Let me know if you know of any currently implemented solutions. I'm really excited about the prospect of this.