The clock in question, aside from being an exact copy, was an example of a trademark infringement not copyright infringement. It's very different. In fact trademarks must be defended against infringement or they can be considered void.
If he had copied, even in just a similar way, LayerVault's logo to use as an icon (and assuming LV trademarked it) then this discussion would be pretty different.
Apple's clock was an exact copy of the swiss railway clock. In this case, the rounded corners are different, the color is different, the shadow is different, the lengths of the lines are different.
Thanks, I figured that part out.
I was more replying to this response in the context of the grandparent, which made little sense to me at first, and even less sense when he edited it in some strange attempt to distinguish between "copying", which he seems to be accusing the Flat-UI creator of, and "copyright violation", the legal prerequisite for filing a DMCA takedown, which is what the rest of the comments on this post seem to be discussing.
It's a clock - how many unique ways are there to design it? It's a folded up map with pins in it.
He moved the hour/minutes hands, changed the colors and shadows, used different continents in the map.