Just found this on Pravda. It is a 50 amero bank note. The 100 amero has a picture of a pyramid.
I don't see any point in a Pravda journalist going to the trouble of making this up. I figure we'll be seeing this in 2009. RIP, USA.
Edit: Notice the picture on the right side of the note...it looks like Canada, the US and Mexico, i.e., the North American Union.