Good multiplayer apps that kids can play with parents

Modern moms download a lot of apps to keep kids entertained (and quiet! :p). But I think we should use these apps to better interact with kids. 

I'm looking for good, educational multi-player games for kids. This way, moms can participate and interact with kids. Kids can also play with siblings and friends improving their social skills. 

I have tried many apps but only found one good multiplayer app so far. It is REALLY good though. Called "Bing Animal". It's a Bingo card game matching animal cards. Very entertaining and well made. Details below. Any other suggestions?

Download here: http://itunes.apple.com/us/app/binganimal/id499627847?ls=1&mt=8