harman03
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Modern smartphones have accelerometers and gyrometers that can do motion sensing to a small number of degrees of freedom.
Now the nine-axis modular sensing system is making its way to all three platforms: Android, iPhone, WP7.
The server brings motion-controlled gaming to mobile environments, capturing position data from matchbox-size modular sensors that you can tape to a wooden sword or Viking helmet for live-action outdoor role-playing.
With Aiken’s Immersive Motion, you can get a deeper and richer experience in Augmented reality apps.
Basically, the sensors lie in the phone and are capable of transmitting information wirelessly up to 50 foot range.