Ian Lamont writes "Microsoft recently updated ESP, a virtual reality modeling platform that until now has primarily been used to model aircraft and flight simulations. Microsoft has plans to expand it to other industries such as real estate and urban planning, but one of the most interesting possibilities could be what one observer refers to as a 'simulation of everything,' based on Virtual Earth and perhaps even user-generated content. Indeed, Microsoft's research chief has been promoting the idea of commerce applications and other tools built on top of what he calls the 'Spatial Web', a blend of 3D, video, and location-aware technologies. He gave an example of a shopkeeper creating 3D models of his store's interior and goods with Photosynth and then uploading the results into a large 3D model of local shopping district. Customers could 'visit' the area, browse products, and order them for real-world delivery."