Do a search, I think someone managed to find a way to order the flip-out key and have it reprogrammed for their car. I don't think it will be cheap though coz you're pretty much at the mercy of the dealership for something like this.
But yes, all Canadian model MS3s have the flip-out key. The flip-out keys are nice to have and fit in jeans pockets better that's for sure. Other than that, they look cooler! haha