Nintendo boss, Shigeru Miyamoto, gave a long interview to Popular Mechanics. What does it have to do with Natal? One important thing. Nintendo is not going to introduce anything Natal-like, they are going to upgrade their Wii controllers:
With both the Wii remote itself and Wii Motion Plus, what we’ve been able to do is introduce an interface that is both I think appealing and at the right price for a broad audience. And while we don’t have any concrete plans for what we’ll be doing with hardware in the future, what I can say is that, my guess is that because we found this interface to be so interesting, I think it would be likely that we would try to make that same functionality perhaps more compact and perhaps even more cost-efficient.
Do they simply underestimate Natal technology? Or do they know more than Microsoft about difficulties with gesture-based controllers?
Let’s not forget, guys, Nintendo was the first to revolutionize controllers. So I would respect their opinion and scepticism about Natal.
I still hope, though, that they simply underestimate Natal. )
Canesta claims their device will be really cheap. And it’s most likely true as they are going to use their technology to replace TV remote controls, so that can’t be too expensive. 
