Engadget

"I'm a second-year university student with a health issue that means I can't carry round heavy textbooks. I've been looking at tablets that I can use as a replacement for textbooks and paper notes. I think I need a tablet, pen and software combo that'll let me read, edit and annotate ebooks, PDFs and PowerPoints, have a day-long battery life, display A4 sheets and a camera that can take pictures of textbook pages -- but I've only got a budget of $600. Thanks!"