Previously with the iPhone, downloading audiobooks required a desktop sync with iTunes. On Android, you can do in-app downloads. With the visualizer mode, you’re basically listening to audio with a screensaver background. This mode activates touch sensitive features allowing to you drag across the screen to rewind and fast forward.
Right now the app suffers from Fragmentation issues as there are so many version of Android installed on many other phone brands so the experiences vary, unlike that of the iPhone. If you’re an Audible subscriber and have an Android-based phone (my copy is running on a Sony Ericsson X10), join the Google Group.