When I get on the subway at 103rd street I find myself in the middle of a class of Hispanic kids on the way to the museum of natural history at 81st street. All the girls are in the middle section of the cart, are chattering and listening to music, jointly using headphones. The four guys are all opposite me. Three of them playing games on the PSP (PlayStation Portable). Quiet, totally engrossed and once in a while pointing out cool moves to their buddies. While we approach 81st street the teacher walks up to the boys and tells them to put away their PSPs. They will be visiting the museum and they can't use them for the next five hours. "Five hours?" asks one of the boys increduously. I know that he would be playing again within 10 minutes. Museum or no museum.