[adolph]

Give it time.

  train : plane :: land line : cell phone :: terrestrial : satellite

The transition won't be instant and there will still be a place for terrestrial cell service for a long time, but the future favors flexibility and ubiquity.

The big challenge/opportunity will come when a non-US player arrives, like Thuraya after Iridium and the NSA can't slurp down all telephony.

[paxys]

Time doesn't really have anything to do with it. You are fighting the basic laws of physics. For example 4G/5G home internet has been around for many years. Has it made your Comcast bill any cheaper?