it claims to carry 90% of "core textbooks". So instead of sinking hundreds of dollars on textbooks that you have to lug around, you just zap them into an iPad. Zap. Even if it's closer to 50% of those textbooks, that's still pretty amazing.

Of course, you still have to sink hundred of dollars into an iPad. I wonder if college kids would be better off ditching the computer and just bringing iPads to school. 

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