I'll be interested to see how Apple addresses the problems of the iPhone4 design, in the next release. They're not stupid, and getting hit with these critiques SHOULD be an impetus to their engineering teams to see if they can address them.
Of course, that's true of every engineering team, for every company, for every product... nothing unusual there.
Apple has such a loyal customer base, that I think it realizes it does not have to be as responsive to customer concerns. It seems like they keep rolling out what are practically “beta” versions of their devices, and getting long lines of customers waiting to buy them at premium prices.
The “cool” factor seems to really drive Apple’s sales. The iPad is a perfect example. It is a very cool looking device with some cool features, but it is less powerful than a notebook or netbook computer not really any more portable, is ergonomically inferior, and far more expensive.