I will be going back to school in 6 months or so and am considering buying a 'droid. I will be taking my classes mostly online but am hoping to have a time to take some of the courses in residence. My first thought about buying a tablet is that if I am going to be taking it to class and reading from it I would want a 10" (or 9.x") version...but then I thought, the original Kindle was ony 7"... can anyone give me some input into this aspect of the decision? My first concern is ergonomics - I want something that is going to be as easy on the eyes as possible, while not controlling my desk.