Robin Wauters for Aol/TechCrunch:
The upcoming iPhone 5 will almost certainly be a single phone that supports multiple networks, namely CDMA (such as the one used by Verizon or Sprint in the United States) as well as GSM (which is used by AT&T and T-Mobile in the U.S.).
What does “almost certainly” really mean? Nothing.
Also, on a related note, “proof” that a prototype exists does not mean it will be real.