Earlier quoted context omitted.
It’s ironic how the one company that is WAY over the top wrt secrecy — not only to the public, but also and especially internally (they’ve even walled the hardware team from the software team while developing the iPhone!) — is at the same time the one company that really nails integration.
The key difference is that Apple (as an organization) appears to have an overarching roadmap (that spans multiple product lines). The secrecy is irrelevant as long as the leadership of each division is aligned (it hurts, but does not prevent success). Google, MS, and others are less organized at the top, so subdivisions of the overall org are left to plan for themselves and between each other, which leads to conflict…
Apple has a clear intent that allows the subsequent groups to work towards and contribute to it. Google and Microsoft don’t. They have a vague idea, but not something tangible enough for subordinate leaders to meaningfully contribute to.