Keeping track of when and where the Samsung Galaxy S III will be available hasn't exactly been the easiest thing to do, but we now finally have one more confirmation for those who prefer to do their business at AT&T's stores. The carrier announced today that the phone will be available in-store on July 6th, where it'll of course set you back the same $200 on a two-year contract. That's also the day that you'll be able to order online with overnight shipping, if the whole pre-order thing isn't for you.