I stick to the same workouts for a period, then change them.
During that period, I learn to associate the audio with the excercise to do, e.g. I learn what "chaturanga" is and how to perform it. So, after the first 2-3 times, I don't watch display anymore and only listen to workout audio.
In such cases, training with my little ipod shuffle would be much more comfortable than carrying my high-budget smartphone around the gym.
So, I thought about workout audio export, but any other idea aiming to "listen" to workouts on ipod shuffle would be appreciated too.