An intriguing idea: Robin Capper, a New Zealand CAD professional who blogs, sees a future where Google Earth becomes a common ground, so to speak, for architects and others who use computers to model buildings:
A BIM project that extended to a site, or maybe suburban layout, can now be placed in context. Anyone with a broadband net connection can have the world on their desktop today. Your project is part of that world.
He references this article in an online trade publication, but go via Robin, he has an interesting take on it.
(Acronym alert: BIM = Building Information Modeling; AEC = Architecture, Engineering & Construction, and CAD = Computer Aided Design.)