I pre-ordered which I never do. I just couldn't resist. It's (hopefully) exactly the camera I've been looking for.
I've had the GRDIII (twice) and the GRD Original. I've also had film GR's and loved them all. In my opinion, they fit my hand, are ergonomically correct and provide a very specific image quality that I have yet to find elsewhere (okay, okay, not so much the film ones, but I could get the look I wanted out of those with specific films).
I'm curious to see the size as compared to the current GRD lineup. I'm also curious to see how it compares IQ-wise to the A12 50 GXR Module, which I just got a couple of days ago (I know... I'm late to the party).