Have you checked out the new Apple iPhone 4S page on the Apple site?
http://www.apple.com/iphone
The new design of this page has a really clean look and the motion of the graphic elements is clean smooth and exacting. The shadows and transparent layers really play well. A few years ago we would have built this in flash to get anything close to that, and the transitions would not have been a clean and smooth as the transitions being used in this jQuere. It seems that plane old code wins out again. In the long run after being a flash designer I now find it more challenging to try to work with these type of libraries and get them to work on all browsers and devices.