Lots of column ink has been spent decrying the evils of the brave new world of ubiquitous mobile devices. It will making you dumber, they say. They are isolating you, they say. The truth is that your iPad has as much potential negatives as any other technological advance, but can your microwave teach you Spanish? Check out our list of the best iPad apps for learning Spanish, and see how incredibly easy (and cheap) it can be to broaden your horizons, or strike up a conversation with your Spanish-speaking neighbor.