Nintendo's press release about the conference details Personal Trainer: Cooking and two other Personal Trainer titles that make it much more obvious that these are existing/known training games. Personal Trainer: Math is "a collection of basic addition, subtraction, multiplication and division drills based on the Kageyama method." Which means it's Maths Training, released in Europe back in February. And Personal Trainer: Walking "will introduce a wireless pedometer, letting consumers not only track every step they take, but also turn walking into interactive entertainment." It must be Aruite Wakaru Seikatsu Rhythm DS (Learn by Walking Rhythm DS), then!
Cooking will be released on November 24, and the other two will appear sometime next year.
Gallery: Aruite Wakaru Seikatsu Rhythm DS