Speaking at an Intel event in Munich, Intel Germany CEO Hannes Schwaderer has said that Apple will unveil two different iPhone devices (Translated link) at its Worldwide Developer Conference, according to ZDNet.de. One model is said to have a larger form factor, a 720x480 screen, and an Intel Atom chip as its main processor, while the other is reportedly similar in size to the current iPhone, but with 3G capabilities. Schwaderer said that the Atom-powered…