Small nations that adopt a foreign currency usually use the currency of their major trading partner. So, how much trade does Iceland have with Canada? Well, I looked at five different sources on Iceland's foreign trade and Canada doesn't even make the list.
They'd probably be better off just joining Canada. I'd vote for it, especially if they can show us how to do this: http://www.youtube.com/watch?v=Bz8iEJeh26E&ob=av3e
ebear