[AstralStorm]

It still is an issue. Can you run your own software on the phone? How about its modem chip?

How many closed drivers and services are necessary then, because documentation is not provided and firmware is cryptographically signed?

Services have a problem related to copyright assignment and another due to lock in switching costs, but it's not something a software license can fix easily.

And whether protocols are copyrightable is somewhat of an open question. Others are fighting for open protocols and standards - and still losing. (Mozilla Foundation for example.)