rtcp,
You are correct that iDeck does NOT connect digitally to iPod. There was a review in HT Magazine, as well as at AVGuide Monthly (now defunct, IIRC) that made the claim, as did most of the ad copy.
But the US rep for Monitor sent a follow-up letter to AVGuide stating that this was not so, and that iDeck uses the analog connection from the dock connector.
If the suthor happens to be looking in here, I have a question.
Is it true that the iPods EQ works via the dock connection? I am pretty sure that my 3g 40g unit does not support Eq via the dock connector line out. Perhaps newer units do support this, but if not, the only way to effect any sort of EQ would be to connect via the headphone jack through the rear line in, which really defeats a lot of the cool features of the iDeck.
Brian