Well, it's never really guaranteed that a carrier would have it in its lineup until it's officially announced. Otherwise it's just rumors. Just like some certain handsets said being carried by Cingular. You can't really tell until it's official. I do hope that ATT here also carries the W580i because after owning a W610i, most other SE phones feel bulky. My Z710i has become rather annoying because of its size. I don't really mind if a phone is branded or not. That's a good thing with either using Davinci or Wotan, you can debrand it later on.
I'll sometimes switch off colors of phones. Like selling all of my black phones to get identical ones in white. Right now, I'm comfortable with black.