Has anyone else here heard about this?
http://lhlabs.com/force/announcements/4106-puredsd-announcement
Paul, you might want to contact Larry Ho and company over at Light Harmonic / LH Labs to see when and if you want to get in on the project. If it is what they say it is then it just may be the next step in USB playback of DSD audio. I suspect that you do have some interest in DSD audio.
J.P.