According to AMN, the revolution add on controller (with the analog stick), also called the “nunchaku” will feature some sort of accelerometer to detect motion and force. As cool as this sounds, it highly unlikely becuase the last thing you want to do with the Revolution is to make it too complicated for everyone to just pick up and play. It could be useful, but in the end it could just end up doing more harm than good. It’s not like (ordinary) people understand how the basics of the Revolution work, Nintendo still has to convince the mass market.