My point was that inclusion of the Music DAC is being considered. Bytemaster and Cob have both said this in the last couple of days. I felt it was important to correct your statement that "Peertracks is not going to be part of the SuperDAC". Technically, this is true, since PeerTracks is the external retail site, but anyone reading this forum needs to know that the decision on the Music DAC (back end) has not been made, as far as I am aware. So it would be inaccurate to say that it is not being included.
This is just semantics. Regardless of what might happen in the future, we need to consider the here and now. Current plans indicate (per Xeroc's most recent post) that Peertracks will plug into BitShares Music and not the BitShares SuperDAC.
The Peertracks guys discuss BitUSD in interviews NOW (at least in the most recent Bitcoins and Gravy interview which is what led me to start this thread).
The Peertracks website discusses BitUSD NOW.
There needs to be a clear distinction NOW between BitUSD that is used within the BitShares Music DAC and BitUSD used within the BitShares SuperDAC. It should be abundantly clear to all parties involved that BitUSD is not fungible between chains.
I'm extremely surprised that more people don't see a huge issue with how BitUSD is currently being marketed as a single asset.