As an EMT that uses this "vitality" sensor technology (also known as a pulse oximeter) on every call I need to be convinced how this will work in a video game. Ok, so it detects a persons pulse and blood oxygen level. It could have additional functionality, I'll need to wait till it's released.
The device gives the least amount of player input of any of Nintendo's peripherals (if it's primarily using pulse as input). Not only that, pulse oximeters *are* clumsy.
That said this probably still won't be a failure because I think there are legitimate instances in which this can be used effectively. Also, this is Nintendo we're talking about... they're good at selling things. That said there were definitely peripherals from the other Nintendo systems that were duds and this generation I don't think Nintendo has had even one.
