As if printing the calories of every item, on the menu, will change the eating habits of the average American, and eliminate obesity.
IMHO, this is a big waste of money and time.
First, IIRC, everything has calories. If it doesn't, it ain't food. Fat versus protein would be a more helpful measurement.
Calories are not the monster that makes people overweight.
(Oh, look, the enviro-burger has only 500 calories. Give me five of em!, and a gallon of Coke)
It is not what we eat, it is how much, how often, and the amount (or lack) of excercise afterwards.