After being shown during Nintendo's E3 2009 press conference, the Wii Vitality Sensor hasn't surfaced and has barely even been mentioned by Nintendo. It's still in development though, according to Nintendo's CEO Satoru Iwata.
Speaking at an investor Q&A, Iwata said: "I imagine that you are worried about that because it hasn't been put on the market even though a long time has passed since it was initially announced."
He claims though, that they're striving for an extremely high level of quality and that they won't release it until it's near perfect.
"This is a totally new type of entertainment, and there are large individual differences in the biological information of humans. For example, if it was acceptable that only 80 per cent of the users thought the result was natural, then we could propose this to consumers right now. However, we are aiming for a level of quality in which 99 per cent of consumers feel comfortable, and that is why this project is taking time to complete," continued Iwata.
Since the Nintendo Wii is coming to the end of its life-cycle, with its successor being shown off for the first time at this year's E3, maybe we'll see it for that console instead?