https://techcrunch.com/2017/09/14/starbucks-iphone-x-iphone-8/

Yes, you should be able to charge your new iPhone X or iPhone 8 at Starbucks.

Apple announced earlier this week that its new iPhones will include support for wireless charging through the Qi standard. But as far as charging in Starbucks is concerned, there seemed to be a catch: Starbucks’ charging pads from Powermat support a different standard, PMA.