Just ran across this little Goodie, being advertised on the Internet.... (goTenna | No service, no problem. It is a BlueTooth/VHF CrossBand Repeater that is self-contained, and apparently self-Powered with an internal LiIon Battery. From what I have read, (I have contacted these folks, for more information, and will publish what they say, when it comes.) it connects to your Smart Device via BlueTooth, and then uses the License Free MURS Radio Frequencies, (152-154 Mhz) to connect to other LIKE Units, within about 3-4 Miles. I have not CONFIRMED that it passes IP Protocols, but that seems likely, as they say you can send Messages, Text, Pictures, and Encrypted Data, between Units. If so, these would make Excellent SECURE Comms Units, for Monkeys to use in local AoO Comms. with an Encrypted Voice over IP App on each end, Even encrypted Voice could possibly be used. In a STHF, or Natural Disaster Senerio, Like Minded Groups could form Ad-Hoc Networks, with Encrypted Comms, very easily. Just a NOTE, here: They say, in the blurb, that they are in the process of getting the Units FCC Type Approval, and hope to be able to market them, in the USA, by this fall.