https://arstechnica.com/gadgets/2018/09/reports-apple-airpower-still-overheating-may-be-doomed-to-failure/

One surprise from Apple's iPhone launch event last week was the complete lack of new information about the company's AirPower wireless charging mat. Apple first introduced the charger at its iPhone X unveiling last year, with reports later claiming that the device would ship in March. That never happened, though, and by June Bloomberg reported that Apple was dealing with numerous "technical issues" related to overheating and the complexity of the circuitry involved with the device.