A group of educational publishers, technology companies and two government agencies held a meeting in Washington DC today to promote a plan for transitioning US classrooms at the K-12 level to digital textbook over the next five years. The plan, being put together by the Leading Education by Advancing Digital (LEAD) Commission, has already revealed that moving to a more digital model for student textbooks -- including the devices and technology infrastructure needed to use them -- will save schools about $250 per student per year, adding up to over $12.2 billion per ye