According to TechCrunch, the upcoming iPhone 5 will “almost certainly” be a dual-mode world phone supporting both CDMA and GSM in same device. There are now evidence from a developer’s log that Apple is testing iPhone 5 device, with codes from CDMA and GSM coming from the same device.
This confirms a long running rumor that Apple is building dual-mode support in iPhone 5. Supporting both CDMA and GSM in the same device will allow users to easily roam between both networks. This makes iPhone 5 a very desirable world phone especially for business travelers as major carrier in some country such as Japan and Brazil uses CDMA.