So long as it becomes more incorporated into the "Xbox Experience", I'll be fine. If it falls by the wayside, what will be the difference between Xbox and Playstation consoles? Exclusives?
If console gaming is going to continue, we need a little bit of product variation. Something to justify one purchase over another, so that we don't end up with just one console.
[spoiler]I like diversification, because then people get choices. In this case, the added choice is Kinect or no Kinect. Hopefully the Kinect is popular enough to be a serious part of the market.[/spoiler]