I think the main problem of 3G or new technology is not power cuts or virus. These are other concerns. The main concern is its durability and how rugged it is.
As a sig, I've used so called 3G stuff in ROC last year. Almost flawless but there're still some small problems to iron out. Cannot say too much. ;p
BTW, it is still C4 I think. Command, Control, Communications and Computers.