On April 26, 2012, Trimble announced it has entered into a definitive agreement to acquire SketchUp® from Google. SketchUp is one of the most popular 3D modeling tools in the world. As part of the SketchUp platform, Trimble will also partner with Google on running and developing SketchUp's 3D Warehouse, an online repository where users can find, share, store and collaborate on 3D models. — sketchupdate.blogspot.com
As pointed out elsewhere around the web, the development of SketchUp's core has not progressed very much since being acquired several years ago by Google. This move, which includes the entire SketchUp team, puts product development in the hands of a company that is already embedded in the planning/engineering fields while maintaining collaboration with Google. At the moment it appears that there will be no changes to the current pricing model (free/pro).