Lindley,
Your statement that each sensor would have to be the size of a video-cassette recorder is mistaken at best, and disingenuous at worst.
URL: http://www.hpl.hp.com/news/2009/oct-dec/images/Accelerometer_th.jpg
This is not a smart-dust sensor, it's a sensor-network node, it is what receives all the signals from the various smart-dust sensors.
Your statement that each sensor would have to be the size of a video-cassette recorder is mistaken at best, and disingenuous at worst.
URL: http://www.hpl.hp.com/news/2009/oct-dec/images/Accelerometer_th.jpg
This is not a smart-dust sensor, it's a sensor-network node, it is what receives all the signals from the various smart-dust sensors.