I disagree.

Fast food isn't the best or most nutritious food, but inherently it does not make you fat.  How many calories you over consume dictates how fat you get.

The challenge with fast food is the amount of carbs included.  From good; vegetables and fruits.  To bad; buns, breading, ketchup, mustard, pies, ice cream, cookies, and french fries.  Carbs cause a quick increase in the blood sugar, but leave you wanting later on.  The protein and fat consumed through fast food is generally better for you than are the carbs.

I've lost weight eating fast food.  Simply by consuming fewer calories.  That said, I've gained a huge amount of weight because of it too over the years.  However, at the time, I was less conscious of the number of calories I was consuming.  Pizza is the devil.  Depending on the size of the pizza, a slice can be almost 100% of the daily recommended calories.

Possibly Hybrid Workouts.  I use to do a hybrid Workout and I know of plenty of others who do so.  Xbox Fitness could very easily make a hybrid workout for you to make all the programs useful.

You were talking about people getting "drained" out of there money(as if most people don't waste money on silly things anyway) I said regardless of that if it gets them up and moving it's a good thing. How isn't that related to your post. 

The agree thing was a joke. Hell I thought you were playing it up also Mr. Serious. I actually couldn't believe you disagreed that this may work for some people. 

I wwouldn't even recommend fast food in moderation. Greasy shit clogs arteries. There is unknown meat that ppl continue to eat. You can also drink calories. Have you also noticed you can't get through a 30m show without at least 4 fast food ads? It's gotten out of hand. Fast Food is addictive. People are hooked. Then get their kids hooked. It's mostly all bad. 

From the advertisement, would people think the subscription fee is due to the fact you probably will get constant updates that come with the App. It could be routines, personalize stat tracking and comparisons with millions of people. You could also get constant video update to the archive with new routines and maybe specialize work. Also the app could expand to more alternative workout videos and routine as time goes on. At this point in time, there isn't a lot of detail but it will be interesting to find out how MS pimp this app and what is included in the complete product.

The primary reason we eat is for glucose, and the secondary reason we eat is for nutrients.

Carbs are addictive, that much has been proven.  Doesn't matter where you get those carbs from.  Carbs are the most easily converted into glucose, which is what your body uses for fuel, quickly increasing the blood sugar, which is why they become addictive.  Both protiens and fats take longer to convert into glucose.

Three chocolate chip cookies from McDonald's are just as bad as three, made from scratch, home-made chocolate cookies.  There might be a difference between the sweetener used or the oil used, but as far as what they do carb wise to the body they are the same.

I was comparing this app to a gym membership and why imo a monthly fee instead of just selling it for a given price is just draining cash.

I also thought it was a joke, but recently you sounded irritated and tired of it, so it got lost on you :P