Some african exchange should air mail these puppies all over the continent and see what happens.
Sounds great but who is going to pay for that?
Also, let's think about it for a moment. Imagine some farmers finding these thingies on the ground, dropped from a plane. Do you really think they'd plug it into their phones and start using Bitcoin just like that?
M-pesa runs on most phones in Africa, so they are a bit more clued up, to what Sim cards is, than what most might think.
Nigeria has more mobile phones than France / UK / Japan / Italy ..... Source :
http://en.wikipedia.org/wiki/List_of_countries_by_number_of_mobile_phones_in_useLet's seriously think about that, if we are serious about bringing Bitcoin to the "un-banked" {hope there is such a word}