Wirelessly posted (Opera/9.80 (BREW; Opera Mini/6.0.3/27.2339; U; en) Presto/2.8.119 320X240 LG VN530)
Interesting. Put an access point in your home. Put an access point in your family and friends homes. Put an access point in your vehicle(s), even. It would have a *very* short range capability within the footprint of any one access point, and it may not work in an emergency situation, between different access points, if the network goes down. But, you'll still have private comms within range of any one access point, if I'm understanding it right.
One more option alongside Amateur, CB, 49 MHz, MURS, FRS/GMRS, and the TriSquare eXRS and Motorola DTR 900 MHz FHSS radios for personal/family communications.