I've gotten a couple of questions about the ability to adjust the playback speed of an audiobook or podcast while in Audio Footnote. While there is not currently a way to adjust the playback speed from the Audio Footnote app, if you change the playback speed using the iPod/Music app on your device and then launch Audio Footnote, your playback speed setting will carry over as well. If you want to change the playback speed, you'll have to do it in the iPod/Music app.
I've got a playback speed toggle on the list of future features to ad. If you'd like to see this happen sooner than later, let me know by leaving a comment. The squeaky wheels will get the grease!