RoboCoaster G2, touted as the Next-Generation roller coaster ride, was demonstrated last week.
Most of the rides that I have tried were either rail-based or arm-based. RoboCoaster is merging the two techniques, allowing the passengers to experience the speed of the rail, with the multi-directionality of an arm-based ride.
This additional freedom of motion allows the rides creator to tune the experience of the passengers.
Additional comment: AAAAHHHHHHHHH
Thanks to Anders for the tip.