Oh God why. I've got nothing against flat design done well, but this just makes everything so much harder to <i>SEE</i>.<p>Look at the example screen for "Control Center" -- it looks like a geometric indistinguishable <i>mess</i>. The line around buttons is the same as the line dividing sections is almost the same as the line in sliders.<p>The example screen for weather shows thin white text against a light blue background, which I can barely make out on my monitor, let alone on a phone.<p>If anything, phones need <i>extra</i> affordance as what is a label and what is tappable, since we have fat fingers, hold phones faraway where things are small, and often in bright sunlight where there's little contrast we can make out. Phones need <i>extra</i> contrast, not less.<p>I'm really not one for hyperbole, but Steve Jobs must be rolling in his grave. This isn't about an aesthetic choice, it's just about common-sense usability and quality control. That weather app looks <i>completely</i> useless in the real world, and the fact that Apple's internal processes have allowed this to be launched does not bode well.