Here's the relevant bits:
"An avatar generator for a virtual environment reflects a physiological characteristic of the user, injecting a degree of reality into the capabilities or appearance...Physiological data that reflect a degree of health of the real person can be linked to rewards of capabilities of a gaming avatar, an amount of time budgeted to play, or a visible indication. Thereby, people are encouraged to exercise."
I love Wii Fit. I love that video games have avenues for bettering your body and mind (Big Brain etc.). I will be very interested to see where they go with this. If Microsoft still has business sense, then they will take a similar route to Nintendo and incorporate this into a game where only you and your closest friends will be able to see just how chubby you've gotten. Otherwise, Microsoft will face the same deserved ridicule that Lincoln University received.