This seems like a pretty nice idea. The thing is, they're competing with FON...
I read this and it is not something I would like I could do. It turns out you need to have to be connected to their own WiFi Network:
"Every person that buys internet using Bitcoin connects to a BitMesh Wi-Fi connection close to them, which is provided by a client and functions by using the BitMesh app."
I don't think It will be available in many places. It is more like a test project which probably will never be developed at a larger scale.
I believe it doesn't mean that you need to connect to their Wi-Fi in order to earn bitcoins from them. It means that they want to establish a network of wifis around the world that can be used by other persons. Those persons pay in bitcoins and they buy "internets". Whatever that is.
That means you can only earn money when someone buys and uses your wifi then. Which, for the most persons, would mean you earn never. I mean how far is your wifi reaching? And how many people in that circle would know this project and would pay?
It can actually be deployed in many places. I don't know how do they plan to distribute their product, but they can distribute it a bit like a DDWRT firmware, and/or in routers of their own.
It's not hard to catch private wifi signal on the streets. Many routers are overpowered for certain houses and there are small houses, on the level of the street. One can even catch signal from buildings on the street, or even neighbours can catch the other neighbour's signal... This is a very useful service, no doubt about that. They're just competing with people much bigger than them as I've said before.
I like the idea a lot. I have always though that we people use too many wifis (and pay for them) when we could just share and pay less.
However, there could be security issues with this too, perhaps hackers doing their thing with that bandwith...
A shared cost wifi is a nice idea. But many people wouldn't certainly use that for their everyday usage, so that issue would remain unsolved. I know I wouldn't...
Other problem it would solve is too many connection overlapping each other (on my house, if I scan nearby networks on my computer, I get at least 15 networks, overlapping is a real issue). I don't see that being solved soon either, unless 5Ghz signals become more mainstream.
And yes, security would be a huge issue... People would just hop on different networks for scamming.