Actually it seems cheap to scale. You need a lot of very very smart software but google have a couple of hundred idling geniuses to spare. And if you change hel

Actually it seems cheap to scale. You need a lot of very very smart software but google have a couple of hundred idling geniuses to spare. And if you change helium with hydrogen (not a big deal if a balloon blows up) - everything else is standard components - i think that if they aim for third world coverage the price of transmission must be cheaper than current wireless. And you got much less regulatory hurdles.