This topic is all over news sites, but I like the discussion from the Harvard School of Public Health.
"Toys may disappear from Happy Meals and other kids' meals in San Francisco starting December 2011, unless the food carries less than 600 calories and is accompanied by fruits and vegetables and healthier drinks. The chief sponsor of the new ordinance, passed on November 9, 2010, told the San Francisco Chronicle that it was a modest policy that "holds fast-food (businesses) accountable." The city's mayor disagrees. Promising to veto the ordinance, he is quoted as saying: "Parents, not politicians, should decide what their children eat."
What I love is what this woman has to say about it:
Marion Nestle is a professor in the Department of Nutrition, Food Studies, and Public Health at New York University and former senior nutrition policy advisor in the U.S. Department of Health and Human Services.