"So, when it's on a flat surface, the handset "rocks, rolls, and rattles" more than previous models, he said."
I have an iPhone 7 Plus, and it DOESN'T "rock, roll, and rattle" when it's used on a flat surface. Since it has been reported that the rear cameras on the iPhone 8 will protrude even less than the cameras on the iPhone 7 Plus, it is even LESS likely that the iPhone 8 will "rock, roll, and rattle".
Forbes' Gordon Kelly doesn't know what he is talking about. Either that or he is just out to troll readers by generating FUD about the iPhone 8.