Well, the toonie is ten years old, and I've decided the Americans do it better. In Canada anything less than five dollars is change. That seems like too high a threshold for "pocket change" (unless you work in a convienence store or Tim Hortons) - the American system of using one and two dollar bills [oops - they discontinued the two] seems much more usable, if more expensive. Anyway, personal preferences aside, they refreshed the toonie design, and it looks good, so as long as they don't change the five to a coin too, I'm cool. (If they wanted to save money on currency they could just eliminate the penny).
Editor's Note - Edited on 08.30.06 for clarification and fact-checking