I suspect the biggest thing here is that you wont need a 3000 dollar computer to run your 899 VR goggles. No tether (wireless or not), apps will be in the goggles.

That alone will make them better than any Ar/Vr device i have tried.

Not having to buy boundary defining devices is also a plus.

I assume some if those cameras will focus on hands as controllers.

These are the major drawbacks of current SOA VR/AR. If apples solves all three WHILE providing one or two useful apps, then i think they may have something