http://images.apple.com/macosx/images/macosx_index_hero20071026.png Check out the 3D Dock. Depending on how you view the screen, the Dock will look really out of place (perspective-wise). From the pictures, it looks like the Dock is leaning toward you and the icons can slide off any time. Why do we need a 3D shelf for our icons to sit on? I think this is a classic example of "look what Leopard can do with Core Animation". I think the Dock in Panther/Tiger is perfect... it's simple and it does what it needs to do. Sure, I like visual changes every now and again but, don't you think the 3D-ness is over the top?