As talk of the next iPhone model -- which will arrive in June, July, or August depending on which supplier report one wants to believe -- heats up, rumors and reports from component suppliers and other sources often contradict each other on timetables. This confusion reinforces Apple CEO Tim Cook's statements that any one bit of information -- even if true -- was unlikely to provide the proper context given Apple's complex supply chain. That said, a source in Japan has reported that Sharp will be ramping up display units for the iPhone 5S next month.