Yawn. I suppose this a positive development but I'm not sure. Seems to me that if you are dumb enough to eat fast food often enough for it to make you fat, you are not likely to care about how many calories are in that Whopper-McMuffin or whatever.
On the other hand, the information might dissuade parents from buying the crap for their kids more than once in a while.
NYC votes to make fast-food eateries post calories on menus