The iPhone 8 is causing problems months before it’s even announced

For every year in recent memory, the iPhone has been the phone to beat. Some years Samsung pulls it off, other years their ambitions, uh, go up in flames. Things are looking even more critical than usual this year: the iPhone 8 is slated to be a bigger change and a bigger deal than usual for Apple, while Samsung is looking to rebound from a disastrous 2016.One sign that Apple is taking the iPhone 8 seriously are the supply-chain rumors surrounding OLED displays. Organic light-emitting diode scre