While the app works in both phone mode and tablet mode (but disabled when headphones are inserted), we've been told that it's tuned specifically for the PadFone Station's loudspeaker, but nonetheless, the improvement is apparent: audio is both louder and livelier with added warmth.
Here's where it gets weird: the kickstand on the back of the dock is removable, and can be inserted in one of two ways (again, to support the tablet in landscape or portrait mode).