I think they mean "GT500". "GT" is a Mustang, that and their V6.
I am waiting for the 2006 models. Need to save up the cash, for one thing, but I'm also working on the theory that any small design flaws will be ironed out. (No evidence for this, it's just my weird hunch.)
Ford GT:
http://www.fordgt.net/gt_photos.html
Ford Shelby GT500:
http://media.ford.com/products/presskit_display.cfm?vehicle_id=1269&press_subsection_id=421&make_id=92
Ford Mustang GT:
http://www.fast-autos.net/ford/05fordmustang.html
Alot of people subscribe to that same theory. I'm waiting for the same reasons you are - that and the fact that my '93 Thunderbird just won't die (160k miles on it, and I'm a textbook example of how not to treat a car!). I may as well drive it as long as I can and save the money.