I'm replying on my new blue s3 that I just picked up FROM the AT&T store! I called and they said they just got a shipment in but it came with a Memo stating wait until tomorrow to release them. But the lady said as long as the system doesn't force her from not selling one, that she would sell it. And it worked! So I would say tomorrow is a great bet if you can't already get it today.
Btw I live in a small town in Oregon so if my store had it, the bigger stores must!
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