I would like to point out though that Wadia's bit for bit could be the bit for bit in picture
Those bits don't know if they are audio or video. :)
You seem very set on dismissing the Wadia.
Look if the Wadia contains that kind of DSP that can reduce jitter to that low of an amount I will be happy to buy it. It's much cheaper and comes in a pretty box.
I am being redundant here. You can purchase a DAC that reclocks the signal reducing jitter and this is as not rare to find as you have eluded. MSB isn't the only company gifted at reducing jitter.
I believe I have read a blurb that states that the MSB unit converts the signal to SPDIF instead of the iPod doing so, whether this makes much difference I am sure is up for plenty of debate.
Let me be clear in that I am not dismissing the MSB unit, rather countering comments against the Wadia that I think are not accurate.