I got mine in a model shop in Tokyo at the beginning of June. At that time, they were hot off the presses in Japan, and were displayed front and cener at the model shop along with all the other new products of the week. So, they're probably starting to trickle outside of Japan now. I can't remember anymore, but if my memory serves me correct, they were like US$15 each.
As of June, they only come in the white Type-S, and Early model year silver coupe.
Well, time is of essence. A fellow NSXCA member is in Tokyo right now, and may just stop by that model shop. Email me if you want one, but no guarantees.