M$ has hinted at expanding Natal tech outside of the Xbox. Think about using Natal tech for your desktop, or even making touch screen functions nearly obsolete. There are so many ways you can integrate the tech into gaming even on the PC.
That's like saying PC gamers buy GfW games in masses becouse they support x360 pad. Some might do but most doesn't care and will buy game becouse it's good.
All UE engine games are easily ported to PC so how would it change anything compared to today ?
If there's only a few titles supporting Natal on PC and relatively huge userbase (few millions) I could see the increase in market as they would be more interested in Natal enabled games.
But if we assume there's plenty of Natal games on pc we are back to the same point where we are today.
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