This always struck me as an absurd case.
Did Samsung take some design cues from Apple? Of course they did. They didn't blatantly copy anything, though. It's easy to tell that the two devices are not the same device. Almost nobody mistakenly bought a Samsung phone thinking it was an iPhone.
That's really the only way Apple could prove damages. If they found actual customers who went into the store with a desire to buy, not just any smartphone, but specifically an iPhone, and mistakenly bought a Samsung phone instead. Maybe somewhere under 1% of people did that - maybe Samsung should pay Apple $4M for that. It's absurd to think that all of Samsung's revenue from their phones should go to Apple, though.
If Samsung had launched an MP3 player with a click wheel, simple UI, white earbuds and 'S-tunes' etc in 2005 would you also argue that 'so they took some design cues, no big deal...'?
Look into what smartphones were pre iPhone, what iPhone introduced and what the Galaxy range was. To add insult to injury, Samsung often insult Apple *users* in their ads.