covers just about all aspects of the updated OS except for the browser. You will note that the camera is now accessible from the lock screen and the new OS includes the Walkman player that Sony earlier said was coming on the Sony Xperia GX and Sony Xperia SX. Sony has also added re-sizable widgets.
Even if you know only English, it still doesn't hurt to watch the video of the Sony Xperia S with Android 4.0. After all, the Ice Cream Sandwich build of Android goes beyond any mere human created method of communication, like voice, for example. In other words, you can learn plenty about Ice Cream Sandwich for the Sony Xperia S by turning off the sound and closely watching the video.
source: se-nseV5 via Phandroid