Among the many examples of what shear touch could do, the research duo has raised the possibility of skipping through music by pushing left and right, or scrolling more slowly through your favorite website with a forceful dragging motion.
On the interface side, the phones are much more responsive to S60's new motion and transitions, but Nokia has oddly chosen to disable the Navi Wheel scrolling in all three phones -- a weird move, but we can't say we blame them, we haven't had a single good experience with Navi Wheel since Nokia introduced it.