Dunno if you chaps have seen this article on amateur satellite comms?. I'm not into it like you guys but I do recognise a possible big step in improving comms over longer distances that DONT have the dreadful vulnerability of ground based repeaters / relays / parrots etc. A cloud of satellites instead of repeaters could be that step forward we would need to have secure long ranges comms if their is a big event on earth that sees the relays and repeaters fail.