Thanks for using the online community to seek the answers to your questions. As of this moment, Sprint has not yet announced carrying the iPhone "5". Apple has a media day scheduled for September 12,2012 in San Francisco, CA. At this moment there is no preorder because it is still unclear that Sprint will carry the iPhone "5".
What worries me is when Sprint will be able to ship and how many they will have available to ship on the 21st.
I wonder if buying through Apple and using Sprint as the carrier would be faster? Even if I have to cancel my current account and begin a new one. I am out of contract now.