It depends on your environment and on the person. But personally for me, the concept of actually being able to physically walk around in a spatial computing env

It depends on your environment and on the person. But personally for me, the concept of actually being able to physically walk around in a spatial computing environment, and manipulate windows to change different things appeals to my ADD side. I like physically walking around and pacing as I work anyway and this gives me the opportunity to do it by simulating essentially multiple visual input interfaces all over my house. Being anchored to a single desk and computer exacerbates what is already effectively a fairly sedentary occupation.