I came across this today quite by accident and just love it:
I actually discovered it when I stumbled upon a blog that linked to it. The blogger even made reference to the fact that it reminded her of a Dr Wiseman trick (don't worry Richard, I'm sure she meant to say Professor Wiseman). She was no doubt referring to his superb colour-changing card trick. Remember the effect is achieved with no editting. Have a think about how it might have been done before you watch the clip below that reveals the wonderful secret:
Great piece of marketing.. who knows I might even consider buying a Samsung if I didn't already have my eye on an iPhone.
(Just for now, I have stretched the template for the blog so that the full screens from the YouTube clips above are shown. The usual template rather annoyingly cuts off the right hand side of the clips.)