The Japanese will find any excuse to pull out a Nintendo DS, as evidenced by this Tekuteku Angel Pocket pedometer. The otherwise ordinary white and blue pedometer is made extraordinary by its ability to upload data to the Nintendo DS. After syncing, the DS can keep track of your "caloric output and general health readings."
As a reward for walking—other than the obvious one of staving off death—the little figure in the Tekuteku Angel Pocket shrinks down the more you walk. Encouragement for walking, what'll the Japanese think of next!