Apple has placed orders for four million units of new iPhone models, with delivery expected by the end of this quarter, according to a China Times report (Translated Link). The report goes on to state that Apple may introduce three distinct iPhone models, including a new 2.75G (EDGE) model, a new 3G model, and a third model created especially for the Chinese market. All three models are said to be similar in design to the current iPhone, and the report…