Ok. I tried to ask this question in playback
http://taperssection.com/index.php?topic=70234.0, but maybe I'm not asking it the right way.
I have a Creative Playdock which was sold as an accessory to the JB3. It provides power to the JB3 via it's internal 12V SLA, which makes the unit a really nice completely portable playback device. Both Creative and Cambridge state that the Playdock CANNOT power an ipod.
My question is why not? If it can use the internal 12V to power a JB3 and other MP3 devices, it must have a converter knocking 12 down to correct voltage for the JB3 and other MP3 players, but not the ipod, so all I would need to know is what does the ipod require for power and can I use the internal 12V with a different power converter or maybe the same one to a hacked ipod USB cable to get this playdock to power my ipod.
Does this make sense?