Here is a great list of App awards from iEAR.org All are listed by curriculum area, elementary/secondary level, and iTunes link is provided for each app as well.
Now supports ePub books from the library!!!!
"Download OverDrive Media Console v2.0 for Android or iPhone today!
* Read Adobe® EPUB eBooks.
* Find libraries using the new 'Get Books' feature.
* Listen to MP3 Audiobooks.
Choose OverDrive Media Console for your computer or mobile device…
* Download content on your Android, BlackBerry, iPhone, or Windows Mobile device.
* Play audiobooks on Mac & Windows (plus music & video on Windows).
* Burn audio to CD on Windows & Mac.
* Transfer titles from Windows & Mac to most devices."