[bla2]

> It has long been axiomatic that Apple is not the sort of company that could walk and chew gum at the same time. In 2007, they issued a (very Steve Jobs-sounding) press release that stated Mac OS X Leopard would be delayed five months because the iPhone consumed too many resources [...] Last week’s keynote was when we, on the outside, finally saw the results. Apple today is firing on all cylinders.

There still haven't been many OS X os kernel-level since then (say, NFS+ is largely unchanged).

(But the point seems generally true other than that.)