This is the reason why it's better to have multiple chip suppliers. The sooner AMD gets on board the better.
apple does not have to worry about supplies, and if they did start to use AMD they can kiss any special favor from Intel, that one bitter taste to Intel. ARM on the other hand Intel would be so happy I think if Apple acquired it.
I have nothing against AMD but I see no reason to move to them at this time, but that may change in the future for sure.
But I do like their 6 core chip, tight.