The most interesting idea there is the "third cloud" - that our phones might share information with each other automatically.

I've often wished that, as I sit just out of signal inside a building, that my phone could talk to one nearer the window and use its signal to connect to the outside world.

But this then raises all sorts of questions, both security related (man-in-the-middle attacks) and business related (how do I pay for using their bandwidth).