In a turn of events that will surprise no one, the Wii Vitality Sensor
has been indefinitely shelved by Nintendo R&D. Engadget is reporting
that during one of his regular Q&A sessions, Nintendo CEO Satoru Iwata said the device was "pending release" because Nintendo couldn't get it to work 100% of the time with test groups.
The sensor was announced way back at E3 2009 and while a couple of the applications seemed interesting (measuring stress and suspense in a survival horror game) I figured it would just be too hard to get working consistently. It was always possible that the peripheral would (and still might) show up on Wii U, but with the Wii's lifespan effectively over there was little chance of the sensor to show up on the little white console that could.