White iPhone 4s shows up in internal AT&T system

Engadget published a screenshot that is claimed to be an AT&T's internal system listing a white iPhone 4S.

A helpful tipster sent us this tasty morsel, from AT&T's internal system, listing the "iPhone 4s White" beneath a handful of already familiar Apple handsets. Could it be? Is Cupertino actually planning on bringing a white version of its next iPhone out at launch?

Real or not - noone knows, we just have to wait and see it announced by Apple in October.