See this video of the demo offered by MS for customers in a retail store in Portugal for Windows 8. Its unique and different - for sure. It would have created definite interest and surprise at the stores. The video itself - as a viral - has done the rounds on facebook and is nicely put together. Especially, the sweet end of the video.
I only wonder whether the age of the kids doing the demo, would be that surprising - at least in a country like India? If the idea is that its that easy - then actually aren't kids of the age shown in the video the smartest (not the simplest) people to be doing the demo? I would have either chosen kids much younger or really old people who would typically be technologically challenged. These kids are far ahead of the regular crowd - I think!