Commercial Difficulties
While Internet 0 works in many media, for any given transmission medium there are usually competing, preexisting physical layers that are more reliable, higher speed or lower power. While they are usually not as flexible, and rarely as inexpensive, they are less surprising.
In the early exploration of the concept, Sun Microsystems, Cisco Systems and Schneider Electric were interested in commercial deployment. Schneider eventually decided to deploy Zigbee, a low-powered radio protocol.
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