hsrob on 07 January 2010
The Wii Vitality sensor.
It's likely to be much cheaper than the other two and knowing Nintendo it is likely to packed in with the first major game it supports.
@Kantor: you know what the vitality sensor will do and how it will be incorporated into games? I'm as sceptical as the next guy but we just don't know enough at the moment to say that it will be useless.
Essay Pro