Just had an awesome idea

Just had a great idea for an augumented reality application. What if you were an architect and wanted to pitch some people on a building. They could wear VR goggles and see the building in the spot you intend to build it, as it would look (rendered in 3d of course). Could be really useful for selling clients on a concept. I would think that being able to picture how the building would fit in with the surrounding buildings to be very useful. They already do renderings like this - being able to walk around it and stand in front of it would be even better ;)