[feoren]

As much as I hate the veneration of Steve Jobs, this is one thing he was good at. Does anyone seriously think the iPod and iPhone would have ended up the way they were if he was putting half-assed music players with bare wires in the hands of users and going "do you like it? Is it OK? Would you buy this? What do you think? Is it too much? It's too much, isn't it? Should it be white? Is white OK? Do you like white? I noticed you didn't push the button. Do you like buttons?". Hell no. He took the prototype and said "Too clunky. Too big. I need to be able to lick it. It needs to feel better in my hand. Try again"

Yet not only do software developers do the timid design-by-focus-group all the time, they confidently tell you you're doing it wrong if you don't do it this way.