Huge issue, huh? You do realize that you returned the iPhone 4 times in a row and saw the same thing every time while at least 10 million+ other people do not see what you see? When I read the yellow screen thread every year started by a few select people, I can’t help but chuckle.
Could be a huge problem for people in same region by example. If all the regional iphone stock is corrupt by yellow screen. You can exchange-it 10 times, you will get 10 crappy screens..