I do not know if the coins will be of this exact design but it sounds like we may have another form of coinage circulating in America soon. Is this real or bunk? (lets keep on the numismatic side of this not the political) . http://downtherabbithole12.wordpress.com/2008/02/13/22/ It has a "D" mintmark. I wonder if it was made at the Denver mint.
D is for Daniel Carr These are widely available now. It is a fantasy design of his. http://www.dc-coin.com/index.asp?PageAction=VIEWCATS&Category=8 This fellow tried to make it into a conspiracy , lol, he was busted bigtime. A funny watch: http://www.youtube.com/watch?v=ge2J2lNusJs
Here's a thread from March '08 about these "coins" ............John http://www.cointalk.org/showthread.php?t=34735
The coin you posted is a silver round. The concept of the Amero, however, is a real one that has been discussed as a regional currency similar to the Euro in Europe. Whether it will come about in the future remains to be seen. I would bet that to date, there are no Ameros in circulation anywhere.