New evidence suggests that the iPhone 5 could very well be a dual-mode handset capable of supporting both CDMA and GSM networks.

Rumours that Apple was planning to introduce an iPhone capable of connecting to both networks began circulating shortly before it released the Verizon iPhone in the US, the first iPhone to support CDMA networks.

TechCrunch reports that a developer, who spoke to the technology news site on condition of anonymity, said that a very small number of people had registered for one of its applications from a brand-new but unspecified Apple device that was capable of connecting to both types of mobile network.

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According to TechCrunch's Robin Wauters, who claims to have seen the registration logs for the app, "some registrations for the app were logged from a new Apple device, using the MNC/MCC codes from both Verizon and AT&T."

Though most mobile networks around the world and particularly in Europe are GSM there are several countries other than the US where major carriers use CDMA - such as Brazil, India and Japan. A dual-mode iPhone that could switch between the two standards would be a major boon for travellers.

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Meanwhile, developers poring over iOS 5 beta 6 have spotted clues pointing to an LTE-compatible iPhone. However, it is thought that LTE support might be a step too far for the next-generation iPhone, with the size of LTE chips considered too bulky to fit into the handset.