Qi is the standard that allows the latest model of AirPods to charge wireless, which means they don't need plugging in.
AirPower was one of Apple's rare products. It was first presented at the iPhone event in September 2017 as a pad and would allow customers to charge the iPhone, Apple Watch and AirPods at the same time. Apple said it would be launched in 2018 but it didn't. The reports suggested that the delay was due to overheating units.
It seemed that Apple could provide new details on AirPower last week, when it launched a new iMacs, iPads and the latest AirPods. But again, it was not a show.
Apple has not said when AirPower is launching and refusing to comment.