Ummm.. Do you think that having this is actually going to help obese persons to get fit? I don't. The information is already out there, everywhere, on how to drop fat. AND, they would still need to use that information.
Now, this could be a handy device for some of us that are engaged in fitness regularly to see what kind of exercise modifications and diet tweaks can burn more fat.
Obese people don't need a fancy gadget, they need motivation and self control.