The original iPhone was absolutely a revolution and changed not just the phone market, but arguably the world, making the connected internet mobile and richer far quicker than many could have imagined.
It is possible that the tomcod and the killifish will then evolve again, just as the peppered moth did, if their PCB-resistant proteins are not absolutely as good as the original versions which they might not be, given that evolution did not find them before.
Put it in your pocket, even the tiny fifth pocket that Steve Jobs famously pulled the original nano from back in 2006, and you absolutely won't be able to tell it's there.