As you know, Nike recently released the Luna Racer in the same kind of design as the original from 2008. The "Luna Racer 2.0" that came out last year was a real piece of garbage, IMHO.
I was able to obtain a pair here in Bangkok.
(1) The toe box is slightly narrower, and I think that this is a good thing. It seems to make the ride more efficient like a true race flat.
(2) The material of the upper is slightly more stiff.
(3) The sizing is the same.
(4) The colorway is still gay as hell. Why couldn't they do something cool like black and yellow?
I may or may not race my next marathon in them. I ran 2:24:30 in Amsterdam 2008 in the original Luna Racer.