A device that's faster and slicker than everything else. That has a version that can fly vertically.
If you're in the sf bay area, go take a tour of the SS Jeremiah O'Brien when things reopen. It's a WWII Liberty Ship freighter. They built well over 2000 of these things, fast, and cheap, to haul military stuff from continent to continent. They had to be fast to build: many were needed. They had to be reasonably cheap: the enemy sank many of them.
And, look at the design of this here Hacker News web app. Functional. High capacity. Simple.
Why can't US weapons factories build stuff like liberty ships and simple web sites, that work and are serviceable?
Too many committees? Too many senators? Unwillingness to tell some branch of the service (the Marines) to use helicopters? Another branch (the Navy's aircraft-carrier service) to use purpose-built planes?
I wonder if engineering and business schools should reintroduce this thing I was taught in college. "Any clod can build something heavy for a dollar. It takes skill and dedication to build something light for a quarter."
Grumble.