Chris Harris of Code into Light decided to put together a concept of iOS 7 running on an iPod Nano.
It appears he likes it:
I decided to see how the iOS7 interface faired on the old iPod Nano screen. When screen real estate is at a premium iOS7 shines.
I am not a “designer” and I always choose clarity above style when I have my App Director hat on. Notice how the overly enlarged Safari circle, which some have called wrong, actually works really well in this particular situation.
I imagine this would hold true for a large wall hanging display too.