I think the UI looks great on Retina displays. The main point for me is the smoother fonts. It's extremely crisp. I also loved the Windows 2000-style UI which

I think the UI looks great on Retina displays. The main point for me is the smoother fonts. It's extremely crisp. I also loved the Windows 2000-style UI which was almost pixel perfect. I guess that's why I love Apple's new design direction.