This could be good news or bad news, depending on how you look at it. On one hand, you no longer have to trek out in the freezing cold or drive to the gym. On the other hand, you no longer have an excuse not to go to the gym!
Nintendo announced it's WiiFit program yesterday at the 2007 E3 Conference. The software, integrated with the Wii Balance Board, interacts wirelessly with the console to provide a full fitness experience. And by full fitness experience I mean stretching, aerobic activity, sports, etc. The square shaped board not only measures body weight, body balance and balance shifts, it also has the ability to track your progress in a graphical chart.
Bonus: Nintendo also announced that they plan on integrating the board into games to create the "ultimate interactive experience."

So let me get this straight, I can get a full body workout in my living room using a video game? I mean, the Wii Sports Boxing & Tennis already kills my arms, but this sounds like something that could really catch on. I'm thinking of all you Moms out there whos kids made them buy the Wii and have long since forgotten about it.

Wii Balance Board Demonstration at E3
via TGDaily