“You’re never more than 8 feet from a rat”
Central london — how far are you from a live but inactive cellphone…surely bluetooth range, if there was software to build a mesh from that proximity and use it…what’s the ratio of inactive to active phones within range at any moment? 5 to 1? Higher? Enough anyway to have enough bandwidth to serve as routers…
consider the phone function as superfluous — hack the thing to get at the codecs and redirect traffic over bluetooth instead, ignore the GSM system entirely, free p2p calls…
of which, killer app for pocketpc-based wireless devices? — H.323-based voicecalls over wireless, just use the damn things like DECT phones…