Downloaded the game last night, and played it while using headphones.
This morning, I go to play without the headphones in, and the game has no sound. I plug the headphones back in, and the sound is there.
I check both iPad and game sound settings, try other apps for sound with the headphones out, and everything checks out. I power off the iPad, turn it back on, and still no sound. UNLESS the headphones are in.
WHA???
This is an iPad 2, not yet running 5.1. (I'll get around to it one of these days.)