https://www.techradar.com/news/apples-airpower-mat-might-be-doomed-to-failure-according-to-new-report

Announced last year alongside the iPhone X, Apple's AirPower charging mat promised to bring wireless simultaneous charging to multiple Apple products upon its eventual release. 

After an initial delay that would see the Qi-based device pushed to March, then a second postponement to September (a whole year after its original announcement), the AirPower mat has seemingly missed the boat once again, vanishing from Apple's website in the process.