Hi, am thinking of getting the nabi 2 for a 6 year old boy. Am wondering how good they are. Am I going to end up having to buy a more grown up one in 6 months time? All he really wants is something to play games on. Are the apps on this similar to the ipad ones? Are lots free like the ipad? Will he be able to get mario? I am happy to get a more grown up one but did like the parental control factor on this one!!