White iPhone 4 in AT&T's account management system now, too

Hot on the heels of cameos in various Vodafone Germany and Best Buy systems, the mythical white iPhone 4 is showing up somewhere else -- and for many of you, this one hits particularly close to home. Turns out any AT&T subscriber can now log in to their account and see both 16GB and 32GB versions of the phone listed in the model picker, which could definitely suggest that these guys are getting ready to finally make them available along with everyone else. Then again, we've also heard that the white iPhone 4 never even left some of AT&T's inventory systems in the first place, so this might mean very little -- but for now, we're going with the "where there's smoke, there's fire" angle. Verizon, your turn.