Here's an article from FastCompany, where they asked some folks from the big design firms like Herman Miller and Steelcase to imagine cubicle design to enhance both comfort and collaboration. As much as I wish cubicles would go away, in favor of more open and flexible space, they probably won't, so this design is at least a bit of a compromise towards improving some of the limitations of the design of more traditional cubicles. I especially like the hexagon shape, and I suspect it would also increase person-per-square-foot efficiency. The automatically activating noise-cancellation speakers would be great, too!
Full article here: http://www.fastcompany.com/magazine/157/redesigning-cubicles