Viral video seems to be one of the most popular methods of advertisement in recent years and hitting the internet with a bit of video trickery seems to be a guaranteed way of getting your brand out there.
Nike did it by showing footballer Ronaldinho playing one-two’s with the crossbar, Transport for London did it with a Moonwalking Bear and now Samsung have done it with the old disappearing camera trick.
How they did it (but I’m sure you’d already figured it out).