Google Dust

As Google maps the world with products like Google Maps, Google Earth, Google Street View etc. The next logical step would be a real time 3-D rotational view of the world all the time. But how could this be achieved? Easy. Google Dust! Nano-sized cameras that float around in the air like invisible dust. They would constantly feed the images to a Google Earth type software that, of course, would be freely available on the web! Brought to you by Google.