Earlier quoted context omitted.
But this isn't the issue at hand. Apple's claiming that Samsung deliberately copied their trade dress to confuse consumers. Remember, trade dress isn't functionality. It's the look and feel of the product, not the functionality. It's over things like the color of the slide to unlock mechanism. The choice of icons and placement. Not the fact that you move your finger across the screen in a certain place to unlock the…
Doesn't their phone say "SAMSUNG" on the top of the frontside? Surely Samsung wanted to mimic that sleek smartphone feeling that was all the rage, but try to confuse customers with a clone? They would be doing a terrible job.
In this kind of example, so long as it looked pretty similar and acted pretty similar, people might feel okay to buy the alternative product --whereas if it had the same functionality, or perhaps better fucntionality, but did not look like the genuine product, they might look elsewhere.