I love the shape of Northrop Grumman's high-speed bomber concept. It's beautiful, like the unholy destructive child of a B-2 Spirit bomber and the SR-71 Blackbird conceived by Industrial Light & Magic.
The high-speed bomber is nothing like Northrop Grumman's heir for the B-2, the Secret X bomber or Boeing/Lockheed Martin's own long-range bomber. It's just a concept for now, so there are absolutely no details -- but I guess this beast would fly supersonically and can deliver a few nukes to anywhere in the world in about four or five hours. The Dew Line
This is the F-X, the next-next-generation fighter that would eventually replace the current next-generation F-22 Raptor and F-35 Lightning. Of course, with the F-22s and F-35s having problems and the current economic climate, all these planes are far, far away in the future.