https://www.cnet.com/news/airpower-reference-appears-in-apples-iphone-xs-battery-case-listing/

An observant redditor and some folks on Twitter picked up on it, though it came to our attention via MacRumors.

This has happened more than once since Apple initially announced the AirPower in September 2017 with a scheduled release for sometime in 2018. Mentions appeared briefly on its site in September 2018 and it was cited in the manuals for the iPhone XS and XS Max. But the company remained silent about it at the October iPad event.