Google Buys SketchUp; Google To Map The World in 3D?

Hot off the Google Blog we are told that Google has purchased SketchUp. SketchUp is basically a very very easy to use CAD program. They have recently released a SketchUp Google Earth Plugin that enables you to create 3D models of the objects within Google Earth. The press release says;

"3D for Everyone" is becoming a reality; we're bringing the '3D' part; Google's contributing the 'Everyone.'

Did Google buy them to make SketchUp popular to encourage the public to map the world in 3D? Want to discuss? Join the Search Engine Watch Forum thread named Does Google Plan to Map the World in 3D?