Unmanned Aerial Telecom Relays
Brussel writes "SkyTower in collaboration with the Japan Ministry of Telecommunications (CRL/TAO) and NASA has successfully completed a series of commercial telecommunications tests -- the world's first from more than 60,000 feet in the stratosphere. The tests, which began three weeks ago, were conducted from Pathfinder-Plus, an unmanned solar-electric aircraft developed by AeroVironment." There's another press release here.
The real challenge will be to get this thing to work on batteries or a fuel cell all night.
This story doesn't sound like a giant leap, in that they already got these things to fly during the day.