I wonder how many other issues in Apple products get addressed, in
part, because of the data gathered in Apple stores by Apple
employees. There are several trends in Apple’s product design,
but a very clear one is the simplification of parts that can
break. The unibody laptop design not only introduced a stronger
case, but a simpler one as well. For example, they eliminated the
little magnetically retractable latch in the lid of the laptop.
The way it worked with magnets was cool. Designing the hinge so
that it wasn’t needed at all is much cooler.