AllThingsD, reports that  production ramp up of the next generation iPhone should begin around the end of this month, ahead of an expected fall introduction that could include a second, lower-cost version of the device. Jefferies analyst Peter Misek said “that iPhone production ramp-up will follow one that’s already under way for Apple’s long-rumored lower-cost iPhone, a device he figures the company will price somewhere between $300 and $400 — without a subsidy“. » iPhone 5S Production Will Reportedly Begin Later This Month