Just ran across yet another review but this had a compelling footnote that could make some sense. It is a week old.
Update 8/22/13: We’ve edited this review to reflect significant changes found in the Moto Maker version of the Moto X. It is our belief that our initial review was based on pre-production hardware, and while we are currently waiting for a response from Motorola regarding the differences in the two Moto X phones we’ve tested, we wanted to update our thoughts on this device. The changes primarily took form in an improved display and camera as well as slightly improved hardware on the second Moto X we received (the Moto Maker version).
Now it that holds water, could make a difference in the camera's ability to take shots that aren't so washed out. They might just have tweaked the camera's settings after pumping out 1st runs of the b/w models that reviewers used and ATT first time buyers (and maybe VZW people) will get.