Nintendo is in the midst of developing a pedometer add-on for its consoles, if a European trade document translates to a finished product. The largely mysterious device is described only as a "pedometer" and has just a bare minimum of connections and controls, suggesting a role as an add-on to add data from walking and running to DS handhelds for use with exercise programs and games. One strip on the side also hints at a potential wireless link.

No clues are given as to a release date or name for the sensor.

The console maker has typically shied away from hardware add-ons for the DS but has increasingly turned to selling the dual-screened system as a lifestyle device for adults rather than a game console, thanks in part to health games such as the Brain Age series. [via NeoGAF]