We've already heard that a slightly changed version of Huawei's Mate X foldable smartphone will make an appearance at MWC 2020 in February, sporting the Kirin 990 chipset and possibly named Mate Xs. But that's just a minor revision of an already existing product. The true successor to the Mate X, according to a new rumor from Taiwan's supply chain makers, will land at some point during the second half of next year. Some of the company's suppliers for the upcoming phone, including those for hinges and panels, have already begun small-volume trial production runs for components the new...