Did a white iPhone 4S just pop up in AT&T's inventory system?

Judging from the clandestine screenshot you see above, it most certainly seems like that's the case. 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? We're afraid only...