I'm not proposing that we split companies. I proposing that no company that sells hardware be allowed to distribute software, and no company that distributes software be allowed to sell hardware. The Apple split is only a consequence of that. As would be the likely end of locked down game consoles, now that I think of it.
What I'm hoping to accomplish with this is: reduced or eliminated vendor lock-in, harmonisation and simplification of ISAs, the ability to support any hardware in any OS, and maybe even the the ability to actually write new OSes and see some real competition in this space.
Note one important component I haven't mentioned: ISA patents should be rendered null and void. Anyone should be allowed to design, make, and sell an ARM or x86 CPU without asking anyone's permission. Or a GPU clone, or a network card clone, etc. Without that we'll just strengthen monopolies, or maybe allow new ones to arise.