https://www.cnet.com/news/apple-ipad-pro-gets-pc-power-with-usb-c-port/

The change reflects how Apple is trying to make its iPad Pro models more like laptops. A 2017 iPad Pro ad campaign asked "What's a computer?" and featured a girl using an iPad to take photos, type on an external keyboard, draw on the screen with the Apple Pencil and use the iOS split-screen interface with two apps. The point, in Apple's view: iPads are for creating, not just for sitting back and playing games, watching videos and reading e-books.

What's unclear is whether Apple will embrace USB-C on iPhones at some point. The new iPhone XS and XS Max still come with Apple's proprietary Lightning port. USB-C on an iPad, though, is a signal that Lightning accessory makers should at least broaden their horizons. But the iPad Pro is the most laptop-like of Apple's iOS-powered products, so its uses are very different from an iPhone or lower-end iPads.