It seems like every time I download a new version of the iPhone app it resets the books I want to have downloaded and I have to go in again and select them for download again. This is very frustrating because sometimes I am out and don't know my downloaded books are no longer downloaded, like when I'm on an airplane and now none of the downloaded resources are no longer there so I can't read what i was planning to read on the flight.
It get's very frustrating!