I am going back to school for a Master's degree. And am trying to figure out the best eTextbook solution. I have a 27" iMac and 13" MacBook (which I intend to replace soon with an Air). I also have a WiFi only iPad 2. I looked at Kindle textbooks, Coursesmart, NookStudy, and Kno. 1. Kindle doesn't seem all that great. Their desktop app is clunky and their iPad app is really a book reader and not designed for real note taking and studying. 2. Coursesmart kind of blows because they only offer rentals, otherwise it would be a great option, but sorry I want to own my books. 3. NookStudy seems to be the best, and I can sync between my iMac and laptop, highlight, take notes, and bring it all together easily for review. The only thing that is missing is an iPad app, but that isn't really that bad. 4. Kno seems kind of cool, but their desktop version is web based and even if you buy vs. rent, it doesn't download, requiring access to the web to read. Also not all content syncs between the iPad and desktop versions. Not to mention you can't really get a sense of the desktop version with the trial samples. I am most likely going to sell my 2008 MB and get a new 13" MBA in the coming weeks and go with Nook Study. But I thought an iPad with a dedicated BT keyboard case isn't a bad solution either. That limits me to the Kno/Coursesmart route, but would allow me to take notes, follow along in the book, and bring up powerpoint presentations in Keynote for iPad. I wouldn't do it without the keyboard case because touchscreen typing isn't fast enough. But at that point I feel like I am coming in at the same weight of the MBA without the screen real estate or versatility. Anyone with eTextbook familiarity and thoughts on MBA v iPad, please chime in, thanks.