Bring It: The End of the Static Textbook…
http://www.nytimes.com/2010/08/01/technology/01ping.html
Exciting market; important market. Now just show me the company / non-profit that can sell into schools at a decent clip in the US. With that, perhaps the opportunity (at least for the moment) lies more in the developing world (e.g., India http://nyti.ms/aQpQlN).