While doing a search for some info on the F-19, I came across a few stories about the supposed F-111 replacement, the "Switchblade". I remember seeing some info on it back around the time the movie Stealth came out, since the F/A-37 Talon resembled it somewhat. It is a rather interesting concept, and whether it truly exhists or not is still unknown.
Here is a website with some images and text from a Popular Science's article that ran some years back:
http://www.air-attack.com/page.php?pid=9
The artist for that article has a website and here's a grat image from that:
You have to use some caution when believing a site called "Area 51 Zone" but it does have some nice images and a side view of the aircraft:
http://www.area51zone.com/aircraft/switchblade.shtml
I also found that they have this thing flying in Battlefield 2:
With the F-19 coming out soon, I thought maybe a few on here would have some interest, and maybe someone looking for a project to work on could pick it up....idk...still makes a good topic for some discussion. Yes, you have to show some doubt when it comes to top secret aircraft, but that doesn't mean you can have some interest in them. Maybe this thing really does exhist. I guess we'll eventually find out.