Don't get me wrong, this is great for the future of our society...
Here's my worry. Let's say you get an iPad in the hands of every kid in the class... In a perfect world they are all sitting quietly and reading their text books... But that's not what's going to happen. Kids will be watching YouTube, playing games, showing each other naked pictures, etc... All while the teacher is at the front of the class. How do you monitor the use appropriately?
The schools lock them down and monitor use. I hope you were joking and not that naïve.