Funny you should mention this, we were actually working on it for a while before SwiftUI was revealed, but taking a slightly different approach at the time (the original approach was more inline with Unity, meaning an engine would be required to run the apps). We had reached the conclusion that that approach was wrong (primarily because of the lock in and how much of an uphill battle it would be for us to move to away from it), and had just started working on the new code-first approach when Apple dropped that at WWDC. Our jaws hit the floor because we knew we were on the right tracks then.
