To clarify his point about high resolution displays: they do make one very important design element look better, and that's typography. Whereas on a low-resolu

To clarify his point about high resolution displays: they do make one very important design element look better, and that's typography. Whereas on a low-resolution display a flat, typography-based design might look empty and bland, on a hi-dpi screen it can look gorgeous. Of course, textures also look better on a hi-dpi screen. But the point still remains that Metro-style design has now become an option on iOS thanks to retina displays.