I've had two "X"'s on order since they were announced in October. Like many people, I was a bit miffed by the fact it wasn't the "big" sensor camera, but figured the refined sensor and buffer speed would make it worth adding a couple to my equipment list. The fact that it seems to be an imaginary camera at this point led me to do something that I really hadn't anticipated, that's buy my first Nikon in 20 years, a D800. I'll use the 800 for architecture and air to air aviation work. Nikon has really done their homework, the D800 is a joy to shoot with and the images must be seen to be believed.
I'll probably still take delivery on an "X", if they ever really release it, but the bloom is off the rose for me, too many delays, to much uncertainty.