Those rumors of a pressure-sensitive iPhone just gained a little more weight. Bloombergsources claim that Apple has begun “early production” of iPhone models that incorporate Force Touch input. Full-scale manufacturing would start as soon as July, if all goes well. Don’t expect these devices to be conspicuously different, though. The tipsters say the devices will be similar on the outside to the iPhone 6 and 6 Plus, right down to the 4.7- and 5.5-inch screens. In other words, this could well be the stereotypical iPhone “S” release — all the big improvements (such as Force Touch, a faster processor andupgraded cameras) may be found under the hood.