One of the potential uses for the iPad 2 i'm planning on buying is the ability to read books for grad school. I had assumed until literally 10 minutes ago that I'd be stuck with only those books that were offered on Google Books or Amazon, as I couldn't find info on an iOS app that would read them. Digging around further I found VitalSource Bookshelf. The only problem is that the reviews on iTunes, well, suck. In no uncertain terms most of them say "do not use this." I've found that such reviews aren't always accurate, so I was wondering if anyone in here had tried reading an eBook they bought from their university on the iPad, and how the experience went. Thanks for your input.