I didn't have a ipod in work yesterady to try it, but I did get it working with android. So I'll get the app up once I've made it a bit user friendly. All its doing is pairing with the stereo and making it thing a call is coming through, so you have to 'answer' it then it'll open the native music player on the phone and away you go. Only down side is you've as much control over the audio as you do in a call, but still full functionallity over it on the phone
I'll give it a go on the ipod today if we've any jailbroken ones lying about