To agree with both of you...sort of, yes the screens are identical, and they both sport Gorilla Glass, but there are likely different supplier locations for Gorilla Glass, made in different plants and so there can be differences in both transparency and reflective as well as refractive qualities. I know this for a fact since I've had 4 different OG Droids, 3 different Droid 2s, 5 Droid RAZRs and currently have a Droid RAZR MAXX, while my wife has had 2 different OG Droids and 2 different Droid RAZRs. There are considerable differences between 3 versions of the glass that I've found. Some have a thicker "profile" with a sharp beveled edge, some have a thinner profile with rounded edges, and in at least one phone I've had the glass was thin with a scalloped bevel on the edges.
The thicker glass resulted in what appeared to be a higher contrast ratio, darker darks and just an overall crisper view. The thinner glass in both "types" were much less "impacting" and seemed to almost blur the image slightly. I have a similar experience with a wood stove I have in my home, where the glass on one door broke a year ago. The remaining glass on the other door is still original and is clear and sharp as a tack. The view through it has absolutely no distortion. In the door where I replaced the glass, things look slightly out of focus through the glass on that side. Seeing them both side by side it's unmistakable.