A parts supplier with a good track record of providing advance information on smartphones is now saying that it has heard that Apple is planning more than just a single model of the so-called "low-cost" iPhone. The rumored phone, which has been speculated on for over a year, is said to be aimed at developing markets where pre-paid phones and plans dominate and is thought to be largely plastic-based, but have most of the same functionality as current iPhone models -- but cost around $330-$400, as much as 50 percent less than the off-contract price of a current iPhone.