If you watch the iOS 7 video, you'll notice...
Honestly, if you watch the video several times, and really keep simplicity in mind -- Apple hit a home-run. It's cohesive and really gets out of your way.
Never mind the icons, never mind the pastel colors, never mind the excessive use of white... it's meant to be used with one hand easily and gives you content without fuss.
I'm trying my hardest to get over the starkness of the OS, especially with the icons. However, Game Center just strikes me as a bit odd compared to the rest.