Here is a video which claims Android 4.0 Ice Cream Sandwich running on a white Samsung Galaxy S II. I am not sure if it is a fake one or the original Android 4.0 ICE on the Samsung Galaxy S II.
Earlier the leaked hands-on video and images of Samsung Nexus Prime running on the Android 4.0 Ice Cream Sandwich were posted. This UI seems very much different than the previous one and that is why, I am having doubt about it. Watch the video given below and decide by yourself.