The BIOS was proprietary before their switch to the x89 chip. That is how they shut down competing hardware manufacturers.
Apple's strict control is what makes so user friendly. Forcing developers to work with in strict guide lines keeps the quality of the software up there, but limits the amount of software available. Apple's control extends to the hardware. Even their BIOS is proprietary. By controlling the hardware everything works. Microsoft can only dream of having this kind of control over their product. Opening Apple's products will only degrade them.
They are wasting their time with a refrigerated beach.They should be working on hot snow.
Friction is a drag.