That's probably not what he means. It's been hypothesized and rumored that Apple will eventually move all their laptops and desktops away from Intel and use ARM as the CPU. Intel has been behind schedule delivering next-generation chips, which leads to the conclusion that Apple would want to control its own destiny with its own CPUs.
They won't do that until Windows runs full-blown Windows (NOT RT) on ARM (and has some sort of JIT), which it does NOT seem that MS is particularly interested in making happen. RT was designed from the get-go to be a stepchild, at best, of "real Windows", and it looks like that's what it is going to stay.
Apple sells not an insignificant number of desktop and laptop machines because of being able to dual-boot (and do VM) for other OSes (primarily Windows and Linux), and to be frank, that requires Intel (and more importantly, x86) compatibility. And you can bet your bottom-dollar that Apple is VERY aware of that market-segment.
You can be sure that Apple would love to move to ARM, if only for its insanely-good performance/Watt (and to have a tool to pry-down Intel's stupidly-high prices. And people talk about the "Apple Tax"... Sheesh!). But, unless and until Windows either becomes insignificant (which may very well happen in about 10 years) or they develop "RT" into a non-joke OS, don't look for Apple to give up Intel anytime soon.