Article says: The antenna had to be small, one-tenth the size of a Wi-Fi antenna, and operate at the incredibly fast rate of 24 billion cycles per second. Soun

Article says: The antenna had to be small, one-tenth the size of a Wi-Fi antenna, and operate at the incredibly fast rate of 24 billion cycles per second. Sounds like 24 GHz. But all your critiques are still very valid. But if you can blanket the world with these kinds of radios and mesh them, think 10s or 100s of trillions of radios, then the range issues are less of a concern but you have a chicken and egg problem which needs many many billions of dollars of investment to kickstart. Great reason for IPv6, though :)