Update: Sony has confirmed the Gold and Silver Dualshock 4's will be released in Europe. They look rather nice.
Original: PlayStation 4 with colourful face plates for the PS4 in Japan. This means those in Japan will be able to change their HDD covers, although only if they buy them direct from Sony stores.
Perhaps more impressive was the new Dualshock 4 colours announced. We hope to see some of these in the west.