Ive got the itouch. Apple said I needed there newest cable and could only use the composite signal using rca audio and video. Direct iPod cable to the pioneer wasnt supported due to a pin-out change. so they say.
I got the $50 apple cable and have to use my av1 input for video playback on the D3. Works but no touch screen controls, have to use the iTouch screen for selections.
Audio does work only with the pioneer cable.