It's nonsense. Know why? Since NAFTA, everything I buy is written in English, Spanish and French. Every label, box, instruction manual, etc. Why is this coin all in English? The euro was the trailblazer. That's why there are no words like "TWENTY" on the euro.
The coin is a poorly thought out hoax in my opinion.
There may be an amero in our future, but this ain't it.
I do agree if there is a new international currency in the making, we will all be ripped off in the conversion process.