Floating satellite
The GATR-Com, developed by Paul Gierow, provides a method of communication in times of disaster. The floating beach-ball-like satellite dishes provide connections when the on-ground condition is compromised. The satellite balloon was tested and approved during the aftermath of hurricane Katrina.
The device can be flat packed into two backpacks and assembled in 15 minutes. It can be powered by a cigarette lighter or a small generator. The structure weighs less than 70 pounds, it can withstand wind gusts and is highly accurate. The only apparent downside is that the devices costs $50,000, each.