Building in Google Earth
Some months ago I played around with Google SketchUp. I uploaded my first creation to the 3D Warehouse and it has recently been accepted to the Google Earth 3D buildings layer. It means that if you check Errenteria in Google Earth you'll find the first 3D building in town :)
The geopositioning and 3D design field is moving very quickly, there are interesting news about new technologies and services every quite often. Definitely, it's something to keep an eye on.