https://www.theverge.com/circuitbreaker/2017/9/14/16307832/starbucks-powermat-wireless-charging-qi-pma-iphone-x-8

Starbucks’ wireless charging pads are getting updated to support the iPhone X and iPhone 8, as reported by Chris Davies at SlashGear, who investigated the issue.

If you’re wondering why this would be an issue in the first place, that’s because up until now, Starbucks hasn’t support the Qi charging standard that the iPhone 8 and X will use. Instead, when Starbucks started adding wireless chargers to its stores back in 2015, it partnered with Powermat — which provides power solutions for a variety of retail stores, as well as selling consumer charging pads — to supply the systems. However, Powermat’s technology relies on PMA, the other major charging standard, which won’t be compatible with the forthcoming iPhones.