This is a napkin-stage concept about making maps even more granular by drilling down behind the building walls.

Placing local advertisements - such as a Pizza Hut buried inside a shopping mall - within the maps, so consumers can find such services. The maps can also be tied to a GPS device. Basic visual prototype: http://slideshare...

Michael Cho is a Berkeley graduate student. Cho, who lives in Singapore, is set to graduate from Berkeley School of Engineering with a Masters in EE by the end of 2006. Michael has an EE degree from Michigan University. He is an admitted daydreamer.