[youngnh]

I was wholly expecting his argument to address this quote:

If developers grow dependent on third party development libraries and tools, they can only take advantage of platform enhancements if and when the third party chooses to adopt the new features. We cannot be at the mercy of a third party deciding if and when they will make our enhancements available to our developers.

with respect to "private api" arguments made here: http://www.marco.org/500743718