On Thursday, Apple Inc. (NASDAQ:AAPL) CEO Tim Cook said the company set a record for iPhone upgrades in September, noting that demand for its latest iPhone 17 lineup is so strong that several models remain constrained.Strongest iPhone Lineup YetDuring Apple's fourth-quarter earnings call on Thursday, Cook attributed the iPhone 17's success to what he called the company's strongest lineup ever. "The [iPhone] 17 Pro is the most pro phone we've ever done," he said, adding that the iPhone 17 Air "feels so thin" ...