One of my minor complaints with many of the apps (ok, it’s the games) for iPhone is that they tend to override your current playlist in favor of the generally crappy application soundtrack.
Well, thanks to the kind people of the internet, I’ve found a few ways around this.
The first method only works with the iPhone if you’re using the headset with built-in microphone. When the app starts and your music stops, you can click the microphone button to restart your music.
Or you can try this technique, which will even work for iPod Touch. After the app kills your music selection, just double-tap the home button, and your mini-iPod control should show up. Press play and enjoy your tunes.