Saturo Iwata, big boss of Nintendo, has announced a new hardware add-on at N's E3 press conference. The thing is called Wii Vitality Sensor.

The sensor is a small piece of hardware in which you have to stick your finger. That, at least according to Iwata, 'will make you discover your inner world'.

Iwata also said that the Wii Vitality Sensor provides a more relaxing atmosphere, something which comes in handy in this world full of stress.

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