The raspberry pie makes a great pandora unit. Duct tape it to the back of a battery-powered speaker with the 3.5 plug connected and it becomes a rocking portable boombox….make sure you have a long ethernet cord though! Here’s how assuming root@:
We first want to push the audio out to the 3.5 jack:
root@raspberrypi:~# amixer cset numid=3 1
then install pianobar:
root@raspberrypi:~# apt-get install pianobar
Pianobar controls are located here.