You're missing part of the picture. First off, gyrocopters don't rain out of the sky, that's one of their key selling points is they are intrinsically safe by their nature of design. The failure mode is an auto rotation; but that's not the big thing. The big thing is we are on the cusp of autonomous aircraft. Even right now it you could make it work using current A/P technology with off the shelf collision avoidance sensor technology. With ADS-B the ability to future predict collision avoidance needs goes way up. All someone has to do is fill in some code to tie things together and it gets done with 2011 off the shelf hardware.
You'll google up where you want to go on your phone. When you get in it synchs up with the BT and shoots the GoogleMaps info the nav system and boots it up feeding the AP and 3D SVT's flight director. It will guide you to the nearest local launch pad. From there you launch and the fly by wire system makes sure that operator inputs never exceed design parameters. While the AP will fly the route and avoid collision autonomously, there will still be provision for manually guided flight as well that the system maintains within control and collision avoidance needs. It actually becomes a safer deal because you have a 3rd dimension available for collision avoidance spacing.
It won't be the high speed flying car that a fixed wing allows for, but for the general uses we have for it to relief traffic congestion in large metropolises, it's great and can go much faster than current traffic jam speeds.
