I have purchased the pocket eDGe and the full size eDGe. I am happy with the reader screen as i like to read outside in good weather before classes. However the are to many items that need to be worked out on the other side. I am unhappy with this. Should the app side have actually been a mini-computer, i think evrything would have been great. So i have decided to return both items for a refund to the store of purchase. I wish the tech's well on their efforts to solve the system problems.