Christa Mrgan, writes for Macworld about what she sees as mistakes in Apple’s initial beta version of iOS 7:
The final major problem I see is with the general lack of emphasis and differentiation between choices. Action sheets in particular feel too austere to me in their current form; with button borders gone and the only indication of the “preferred” choice being ever-so-slightly bolder text, I worry about user confusion. It’s impossible to tell at a glance what the least destructive option is, and sometimes it’s hard to tell what’s content and what’s UI.
For every nit I pick, though, I have an exuberant exaltation. This is a major overhaul of an established operating system, and it happened in seven months. It’s an incredible step in what I see as a very cool direction.