The image above is pretty self-explanatory. There’s an iPhone 4s in white flavor listed among other (already existing) Apple-phones. The image is an alleged screenshot of AT&T’s system and it apparently shows (one of) the next phones to come out from Cupertino.
Based on rumors (and there have been plenty), Apple will launch not one, but two iPhones soon. The first one (probably the iPhone 4s) will be a lower-end/lower-spec’d model, a minor refresh to the iPhone 4 and the other (probably the iPhone 5) will be the next Apple flagship. If the info on the image above turns out to be true, Cupertino might be planning on releasing both colors of the phone at the same time. We’ll just have to wait a little more to find out.