Well, to be picky, no one has made a wing suit that does what the Reichelt hoped to do. The current version just lets you have some fun before you open your parachute. Unless you want to count stuff like hang gliders.
Popular Science had an article in 2003 examining wingsuits and the futile effort towards using them to land without a parachute, and they had a great diagram illustrating the problem: http://web.archive.org/web/20030623234930/http://www.popsci....
I think most people would agree with me when I say that doesn't really count. =P