Sony hasn’t had a great time of it in the U.S. smartphone market over the past few years, and it recently announced that its new flagship, the Xperia Z2, would only be made available to U.S. customers unlocked via its website. But the Z2 is still a solid device, and a contender on more or less even footing with flagships from other Android OEMs, so fans of Google’s mobile operating… Read MoreMore...