This is a question directly mainly at college students. In 3 weeks, I will be returning to my University (I'm in the US) for fall semester. Do any of you use your iPad for eTextbooks? I've never bothered with even looking into this, but now I'm really interested. How easy is it to find an eTextbook that you need? And does it save your much money? I already have an iPad 3. Google just announced an eTextbook service and I'd consider getting a Nexus 7 also if they have more availability. Any insight is appreciated!