It brings the focus back to the player. A lot of the development is in "making people comfortable" being 'seen' by Milo.
“What we found while making Milo, is that part of the skill of designing this whole new experience is in making people comfortable with the fact that they can be seen,” Molyneux told Techradar in an interview.
“That things can recognise them and see them and have a relationship with them. And we’ve been talking about that for years and years, you know, emotional engagement in gaming… ‘are games art?’… “how can we make people cry and laugh?”
“And then you begin to realise that this is a whole new area of interaction. Which really and truly has hardly even been dreamt of by science fiction writers. So I wasn’t at all surprised by some of those reactions at E3. But it is down to our skill as designers to make sure that people don’t feel creeped out by it,” he added.
There’s no official date for Project Natal’s retail release except it’s believed to be sometime in fall 2010. With that in mind, there’s no telling how long Milo & Kate will take to reach gamers.