That's the old polarization theme made known on this site by Trav, but if you ask me the current prestige mp alreay implements this without graphene so I doubt the latter makes a difference other than making the throat stiffer than it might otherwise be.
Originally Posted by Racquet Daddy
2013 will bring a new HEAD technology. We will use a new material called Graphene which enabled us to create a completely new and patented way to redistribute weight from the middle of the racquet to the tip and the grip. This provides more power and maneuverability in a lighter racquet!
Pretty vague but whatever...that's marketing and gimmicks for ya.