When the Apple designers first came to Steve Jobs with the iPod he picked it up, fiddled with it and then dropped it into a fish tank. "Those are air bubbles," he snapped. "That means there's space in there. Make it smaller." A successful designer needs a critical awareness of the design all around us and the factors that produce it. They also need to be able to look at an item and analyse - what it is, what does it do, why is like that, how is it made? In this new iTunes collection members of the OU design faculty choose interesting examples of everyday design and debate what does, or...