I think that Rigolet really shows off that type of use case. There are 300 people there. If you look at the broader area, it's not a very dense place, but the town itself is so dense that you could actually cover it with a mesh of cellphones. We figure with 300 people, we could probably cover the whole town with about 50 phones. We did some tests just walking around with the phones that we brought with us, and with about 10 or so you could reach from one side of town to the other. Then it's just a matter of filling out the rest of the town with the phones.
You could use some actual hardware, some hardware off the shelf, and in addition to that you could make some longer links for the phones—maybe you don't reach as far. This type of strategy, I think, is really a low-cost and effective way you can combine that with maybe one fast Internet connection into town.