With Luis Gil: Movie Coming!
The concept behind Nano-City" is that technological advance and ecological responsibility are not necessarily a contradiction in terms.  We believe that technological development from within the fields of design and architecture can be focused to transcend ecological equilibrium.   NanoCity is an interactive robotic city moving across the landscape demonstrating a mass-balance of resources. Both the city and the landscape are made of the same material. At the forefront there are many small mining robots which are milling up the landscape, next there are constructor bots that are building the city. As the city moves along there are bots at the back of the city that are breaking down the city and lastly bots that are reconstructing the landscape. 
http://foxlin.com/r-project_1/story.html