Amazon is one of the few UI's I don't have major gripes about, so good on him. Personally, designers SHOULD be more restricted, the problem space itself should

Amazon is one of the few UI's I don't have major gripes about, so good on him. Personally, designers SHOULD be more restricted, the problem space itself should restrict what they are able to do, but it often times isn't. At one point someone decided the shuffle button for the iphone needed to be hidden for whatever reason. I wish the designers had been restricted by someone's personal wishes during those discussions.