First of all this is a free app which I am all about. Second, it will keep you kid busy for quite a few hours. I let my 11 year old use it last night and had to tell her it was time for bed before she would give the iPad back. Third, I let my 8 year old use it today and she had the thing until dinner then was bugging me about playing again when we got back from dinner. I wanted to use the iPad so I got my touch and downloaded the iPhone version and gave it to her. Her response was it's not as good as the iPad but I guess it will be ok until you are done with it. Yes the iPhone version is not as big and does not have nearly as many things to it but they seem to like it all that same. The iPad version is way cool and I may have to get another iPad for the kids if this keeps up. Even the wife played with it for a few minutes.