In my opinion, get off the fence and go buy an eDGe. It really is a great device. While many devices can display pdf files, one great thing about the eDGe is that it displays the full annotations in a pdf. I use Adobe Acrobat Pro to mark up pdf's extensively. When I view them on my iPad, none of the annotations are there, while the eDGe displays them all faithfully. I have to say that my enthusiasm for the eDGe jumped 1000% after installing the latest (Dingo) upgrade. This is a real quantum leap in usability of the software. The ability to quickly open a pdf on the tablet side is great. Everything is much faster, and the new menus in the journal app are superb. The eDGe is a fantastic tool for education, business and any other way you can think of using it. I am only sorry that such things were not even dreamed of when I was an undergrad.