Google negotiated a contract with Apple in that instance. This is the way the old iOS app worked too - Apple licensed the API in exchange for them building it.

Google negotiated a contract with Apple in that instance. This is the way the old iOS app worked too - Apple licensed the API in exchange for them building it. The main issue is that partners that use revenue sharing couldn't restrict their videos from playing on WP devices that wouldn't generate ad revenue. Normally, you can block devices from having content if revenue sharing is unavailable, something Microsoft circumvented.