Or the perfectly round mouse? Or the iPod nano with its unusable, imprecise clickwheel and the lock switch so small and inset into the body that you can hardly

Or the perfectly round mouse? Or the iPod nano with its unusable, imprecise clickwheel and the lock switch so small and inset into the body that you can hardly find it without taking the damn thing out of your pocket? Or the iPhone with its single button on the front that to perform its various functions needs to be either clicked or double clicked or triple-clicked or clicked and held or clicked and pause and clicked again? (see http://blog.codinghorror.com/the-one-button-mystique/ http://blog.codinghorror.com/the-one-button-mystique/ ).