IPhone 5: Your order has been received, and is being processed?

I pre-ordered the new iPhone 5 at my local AT&T store on Tuesday, September 17th, 2012. I have been checking in on phone for status updates on my order ever since I placed it. Every time, for 2 weeks straight, it said, "The items you purchased are on backorder, and will be shipped as soon as possible." Finally, yesterday, it said, "Your order has been received, and is being processed." What does this mean, and when will I most likely receive my iPhone 5?

Why are you asking us instead of AT&T?

HOW WILL WE KNOW?

It means the order is being checked for credibility most likely. If it checks out fine (idk how long it takes) then they will send you the phone.