I love this idea and concept, and I hope it will work well and expand. But if such a concept were to work and expand to big cities, I wonder what will happen to

I love this idea and concept, and I hope it will work well and expand. But if such a concept were to work and expand to big cities, I wonder what will happen to people living outside big cities... While I don't know anything about the US market, I also wonder what is the motivation to make this project at home instead of mobile-based. Since we all have super-powerful computers in our pockets, it seems to me that we could have an easier similar solution using a smartphone mesh, especially in big and crowded cities?