[Osiris]

Microsoft absolutely got in trouble for purposefully making other Office suites not work correctly on Windows, for using private Windows APIs in Office that other companies didn't have access to, etc.

If Apple makes a watch that can receive and send iMessages then there is no reason any other device shouldn't be able to use the same APIs that Apple uses.

It absolutely creates a system where competitors literally cannot compete with the same features.

[wat10000]

They got in trouble for doing that stuff while having a monopoly on PC OSes. Using private stuff to give your own products an advantage is (legally) fine if you're not leveraging a monopoly to do it.

[conception]

And really, these days that’s only illegal if it makes things more expensive for consumers.