A lot of the criticism seems to be directed at the icons. They really don't look that great to me. Sorry that I have an opinion on the matter, you can direct your vitriol at me if it makes you feel better. Here's a redesign posted to HN earlier that I think looks quite a bit better: http://dribbble.com/shots/1109343-iOS-7-Redesign/attachments...
My only real negative criticism is with the icons. Everything else I can learn to love -- or already love -- but there are some fundamental issues with the gradient directions, shape details and overall consistency.
I think your redesign is a great step in the right direction! The gradients are going light-to-dark in a consistent manner, the scale of the shapes within each icon feels appropriate and you even simplified some of them further to make them more obvious. If your icons were the ones presented, I'd have much less to complain about.
