Skeuomorphism -- the use of real world design in a digital context -- has been a target lately. It's also been lumped together with heavy design, elaborate themes, or highly textured skins, to the point of being completely misunderstood. At the extreme, this "skeuomorphic" melange has been held up as an example of iOS being boring, outdated, and bereft of innovation. In more reasonably terms, it's looked at as something that can be useful, but has perhaps been overused.
Personally I think there are far more important things Apple needs to do in iOS 7 than wiping the world clean of textures, gradients, and curves, both, but the argument persists so it's worthwhile giving it some form. but let's imagine for a moment it is on the agenda. That Apple's new head of all design, hardware and software, Jony Ive, was set to impose a new, unified, Aluminium theme. That, just like the Scarlet Witch in House of M, he whispered "No more themes."
Instead of arguing in the abstract about how much better or worse it would be, let's mock it up and see what could that look like...