Just showing off some of the eye candy on Linux, on my trusty Acer 5920G with Arch Linux x86_64.

Shot on purpose with a camera and not a desktop capturing app, to show the smoothness of the effects and animations. Also you the ghosting/traces on the fast movements are caused from the video editing and encoding. The actual effect on the computer is super smooth.

Regarding Opera, and Its changing of contents after the maximizing animation, it has to render the page again for the new window size.