Hazlett says eloquently in the Financial Times what I believe. Pushing technology at children with no goal, no measurable (objective, social, or subjective) results, and little training for teachers is a waste of money unless you're training drones for office jobs. Which maybe we are and don't want to say.
I'd rather my son spend years learning to draw than years learning to PowerPoint, a restrictive interface that limits everyone's thought processes and creativity by defining one path for communications.