Apparently because their special phones have "new, long-range radio hardware" that makes this all possible.

But radio technologies are pretty widely understood and while I'm no expert I've not heard of anything that could achieve what they're suggesting. So I'll remain skeptical until I understand better what that "long-range radio hardware" is and how it makes such a mesh network feasible.

I would gladly pay with Bitcoin on the Lightning network to get internet access, but the market is not ready yet.