Apple is expected to introduce new iPhone models this year that will feature, for the first time ever, sapphire glass displays instead of Corning’s Gorilla Glass, but not all reports agree on what iPhone 6 models will have such front panels. Some say Apple would have enough sapphire manufacturing capacity for all iPhone 6 models, while others say that only the bigger 5.5-inch iPhone 6 will have such display covers. According to The Register, industrial analysis firm TrendForce has not observed any proof that actual sapphire display production is underway at Apple’s Arizona factory. FROM EARLIER: New iPhone 6 leak gives us a great look at the device’s major redesign Apparently, the sapphire glass has not been sent to Apple’s manufacturing partners,