We already do this in a simplified manner, under a single id. I like the location feature, however, and I am sure the parental control feature will be welcome in many families. My guess is that the photo sharing feature will be the least utilized. Who wants to share photos WITH their kids? I may want to share photos OF them, but not WITH them. And please, I don't want to see THEIR pictures. REALLY. People with pre-teen, or teen kids will understand.