I know, but at this development speed ,Apple will have an arm based desktop/laptop soc that will surpass Intel based desktop and laptops cpu' s (about 180?? % increase from A7 to a9x). This a9x already dishes current Intel M cpu' s.
In 2 years the current 12 inch MacBook will be arm based, with arm based OSX.
The current iPad pro will pave the way to develop the apps for it.
And further develop of the smart connector, will enable Apple to develop powerful hybrids.
It won' t be able to compete with workstation cpu' s in 2 years, but in 6 years it will.
X-86 for consumers is dying.
There are some of us that actually do real work on our OS (computer programmer here), not just read emails. I don't see myself using Xcode on an arm processor.