On a related note, I'm kinda happy to note that steviol is much in use here in southern europe, where I'm currently residing. They don't even make a big deal out of it, regular sodas, vitamin powders, you read the ingredients and there it is.
Steviol is a sweetener based on a natural plant Stevia. I've so far seen it in both Hungary and Croatia.
I come from Sweden and it used to be that Stevia products were in a bin on their own, marketed specifically as stevia products. But down here they don't even mention it on the marketing side of the label. It's buried in the ingredients.