I concur in part and dissent in part.
Natal has been hyped by Microsoft, not by the media. For me is hard to understand why would you create hype for a prototype model with no release date.
It could backfire on Microsoft. A casual adult seeing the demo on TV would be interested in the technology and will ask himself "where can I get that?", then goes to the store and he's told that they don't have that yet, but they have motion based Wii or camera enabled eyetoy.
Microsoft must be counting on the would be players to wait on buying any console until Natal is released; but in our current instant gratification market it would be impossible.
The only possible outcome of this hype is to prevent current xbox owners to buy a Wii as a secondary console.
"¿Por qué justo a mí tenía que tocarme ser yo?"
