For now the app is also iPad-exclusive, and though a few of these educational institutions are giving the hardware away for free, for other students who don't have such a luxury it's an added layer of cost — and an expensive one at that.
				出自-2013年6月阅读原文
				One problem for students to replace traditional textbooks with interactive digital ones is the high cost of the hardware
				出自-2013年6月阅读原文
				For the consumer, it's a matter of paying now for the hardware to save later on the utilities.
				出自-2013年6月阅读原文