How much is Project Natal going to cost? Microsoft's still working it out, but Robbie Bach says at the very green roundtable I'm sitting at that it'll follow a price curve "like anything else," meaning, in English, it'll start at a more expensive point and get cheaper as it goes on. In other words, Microsoft's thinking about it more as a 32X-type add-on versus some tack-on motion controller.

So, I won't be surprised if it's $150, or even more, honestly.