It's not uncommon for different regional/carrier versions of the same device to sport some unique cosmetic details, but since the HTC EVO 4G is exclusive to the US, we haven't had a chance to see any OEM variants.
That changes with the EVO 3D, a global phone that will be heading to France, the UK, and presumably other countries that haven't been specified/confirmed yet. The device's worldly status is the reason it's included on HTC's worldwide site (where the EVO 4G is excluded), which happens to be where new images of a red-less EVO 3D were first discovered.
The gold rim around the cameras is the most obvious change, but there's also the addition of "with HTC Sense" below the 2D/3D camera switch, a slightly restyled power button (icon beside button rather than printed on top of it), and the change from "3D HD Imaging" below the camera flash to "3D High Definition Digital Imaging."
Minor modifications, to be sure, but modifications nonetheless.
Whether this is the actual GSM version of the EVO 3D that will be released on every carrier but Sprint remains to be seen. I don't like the color scheme, personally, and think the red is part of what makes the EVO the EVO, but a black and yellow phone would actually be more befitting of Sprint.[Pocketnow]