Cool Design Detail #1

If you have OS X Tiger, go to your dashboard and pay attention to the plus (+) sign on the bottom left corner of your screen. When you click it, MORE WIDGETS appear for you to choose from. If you'll look closely, upon clicking that +, it rotates as it rises becoming an x instead by the time it stops. So there's a transformation from + to x , a transformation in message (SHOW MORE to HIDE), all with just one shape and a rotation. So clever...