To anyone who has used the Kensington Trackball; Have you used the Scroll Ring? How does it work? Do you twist it or press on the side you want to view? Does it work like tilting a tiltable-scroll wheel? Does this give you horizontal scroll as well as the normal vertical?
I need to buy something like that to help my poor hand swing back and forth all the time!
PS See message on iZoom also! Will it help sometimes?