> As to the Volari Duo V8 Ultra, except for a handful of cards that reached developers
> and reviewers, I can find no cards in the hands of end users - vaporware.

Well, at least it was listed as available in EU web shops from November 2003 through August 2006 with the lowest price ranging from 180 to 380 EUR.

http://www.heise.de/preisvergleich/eu/?phist=74550