Apple's iPhone X, iPhone 8 and 8 Plus are the company's first devices to include wireless charging support. Back when they announced last September, Apple also said it would be releasing its own wireless charging mat, called AirPower. This wasn't like every other mat out there, though, in that it could charge multiple devices at once -- an iPhone X, Apple Watch Series 3 and a set of AirPods, for example. The AirPower was given a vague 2018 release date, but according to sources speaking to Bloomberg, development of the mat has been marred with issues. Apparently it was expected to be on sale by this month, but is now likely to hit shelves around September, probably with the AirPods wireless charging case in tow.