They do make catchy songs. Here's the awesome tune Psi is referring to.
http://www.youtube.com/watch?v=9o5-qmdLCbw

As far as game play goes, I figure the objective of the game will be keeping kids active. So wii is the ideal console here. Like a few people have said, it's probably going to be mini-games that get increasingly more difficult. It's music will be great though.

What happened to the "eC"(early childhood) back in the 90s, giving it an "E" rating makes no sense :|

The big problem with it even if it was on Wii fit is that Magnus always intended it to encourage kids to play outside as much as possible, whereas this would just keep them inside longer than an episode of the show would.

By watching TV? Yea that makes sense

Much of the increased risk is tied to the continued increase in childhood obesity, which the heart association said is around 17 percent of all children aged 6 to 19. Having a body-mass index at or above the 95th percentile for the child's age is considered being obese.

I've definitely seen some kids that really do just sit around watching TV or playing video games, it is really sad!

But yeah I do agree with the "TV as just background noise", me and my neighbor would turn on the TV to watch Pokemon but we'd be lucky if we finished the episode before running outside to play Team Rocket (this was our favorite game), I also remember playing Power Rangers way younger than that, the TV was always on but we were rarely watching it (I think we did watch at least most of Pokemon because we were older so we had the attention span for it a little more).  And you know, even when we'd play our gameboys we usually played outside!  Hell, we even tried playing our gameboys on the trampoline so that we could do both until we realized that was really hard to do.  We were always going back and forth between playing video games and playing outside, but nowadays a lot of kids JUST sit inside and play video games or watch TV.  It's sad, that's all there is to it.