At least according to Jeffery Christian of CPM : http://www.kitco.com/falltour2011/
However he does characterize it better in the video as a form of money. It is not a currency in my opinion but rather a store of monetary value. He also explains CPM's miscall on their gold and silver price predictions for this year because of the " unbridled fear of economic conditions" but expects the gold price to return to the 1600 level(where have we heard that before?). Gold miners can still make money at that price so I don't see large risks to PDG's value there. I don't see any evidence in the news from europe that the unbridled fear is going to disappear soon. Greece is near default and none of the bankers or politicians are talking about the other solutions : debt forgiveness, bondholder haircuts. They still want to preserve the status quo of finding new ways to lend more money , or rollover exisitng debt, to countries that can't afford the payments and can't meet the austerity conditions attached to the existing debt. Then there's Obama with his half trillion dollar stimulus package that won't cost anything.