Personally if I was writing a thesis, I wouldn't do it on the iPad2 or the Chromebook OS. I would use the home laptop that he said he had. That's primarily why I suggested the iPad2 (which is his textbook) instead of juggling two devices at school and three devices at home. I haven't used any textbook software on the iPad but it would be interesting to annotate your lecture notes directly to the textbook chapter so that you don't have to juggle between too many documents.
Great advice. I will get a keyboard for the ipad and wait until the new one's are released to decide if I upgrade it