I have the Galaxy S2 which I recently upgraded to ICS. Since doing the upgrade I've noticed that my audio apps (podcasts, audiobooks, music) all stop playing at what seems like random intervals. At first I thought it was my related to my headphones but I've tried with numerous and still notice the same issue. Sometimes 20 mins will go by without stopping and sometimes but sometimes it stops in under a minute.
I've noticed this with Audible, Google Listen, BeyondPod, DoubleTwist.