This small and lightwieght sensor can be attached to everyday objects or to a persons hand or head or other body part, and can then be used to emulate one of the analogue joysticks on the PS3-SAP. Two can be used together to provide both joysticks. only a few degrees of tilt is required to achieve full joystick travel. These units can be adapted for other purposes. Contact LEPMIS for further information.
In the images, one is velcro'd to a simple headband with which I am flying IRON-MAN, in the other I am simply holding it and guiding Lara Croft.
YouTube videos of this sensor in use can be seen here: