[hyp0]

Because of the distance involved, it seems satellite phones will always require a much larger battery than cell-tower phones. The other idea, of cheap cell-towers to intermediate the satellites, seems much more likely.

Getting billions online would have incredible effects, especially productivity. It really will be a different world, with different market structures.

But I'm not so sure about ad-supported internet at such a fundamental level - reminds me of a Philip K Dick story with ads everywhere (even on toilet paper).