That's a great point, and indeed happens at mega corps like Google. That said Google still ships software for iOS and their web apps are made to work with non-

That's a great point, and indeed happens at mega corps like Google. That said Google still ships software for iOS and their web apps are made to work with non-Google browsers. I guess the point is that software makers shouldn't strive to remove dependencies because some of them are there for pure interop reasons. Even Apple, which is capitalizing on every possible benefit of virtual integration, has large issues interfacing with the rest of the world, at the peril of their users. That's a business decision though, and suboptimal from an engineering perspective.