I would actually be happy if Xcode on iPad was just a front-end for Xcode running on a Mac. I think there’s lots of value in just reading code on an iPad especially when tracking down a bug or reviewing code. I can also imagine Xcode running fully natively on an iPad Pro. When you hit “Run”, it might go split-screen with logging/breakpoints on the left side and the actual app running on the right side. If you had a iPad Pro and an Air, you might hit “Run” on the Pro and have it appear on the Air. You might argue a Mac would be better for this workflow but the entire point is that the frustrations experienced on a tablet might yield new interaction concepts applicable to any iPad app. If Apple wants people to see the iPad Pro as a professional work tool, it needs to start dogfooding.