Not from Hacker News but presents nonetheless an interesting question: is the iPad the future of education? A school in Palm Beach is currently experimenting with the iPad as an educational tool that could revolutionize the entire education system. As to all skeptics and Apple haters, the reporter succinctly responds: "iPads are only a means to an end, they aren't the goal itself."
http://singularityhub.com/2012/01/20/is-the-ipad-the-future-of-education...
As a side note, I recommend this website/blog to anyone - the posts are always highly intriguing. Here's two videos about high speed tanks and an invisible waterproof nano-coating for your smartphone:
http://singularityhub.com/2012/01/19/ripsaw-and-riptide-–-high-speed-tanks-rampage-across-land-and-water/
http://singularityhub.com/2012/01/16/liquipel-–-an-invisible-waterproof-nano-coating-for-your-smartphone-video/