Hmm, so nobody has brought up the possibility of some sort of Apple + Nike collusion (for lack of a better word) here?

Cook sits on the Nike board. Who's to say he didn't let the folks at Nike in on what Apple were working on and the two companies decided to make some sort of deal seeing as the two products would have areas of overlap.

I can see a scenario where Nike features prominently as a partner for Apple's wearable products.