http://arstechnica.com/reviews/hardw...con-review.arsIce feels different than stone. Sand feels different from molasses. I use the orb to move my cursor around the 3D space, and when I hit the virtual sphere on the screen, the controller stops cold. These motors are strong, and provide a very strong sense of physical objects when you interact with them.
Thanks goes out to Ars Technica for the review.