This is a great idea. Now that I think about it, it seems silly boasting how I've coded in so many languages. The reason I had them on my resume was to indicate

This is a great idea. Now that I think about it, it seems silly boasting how I've coded in so many languages. The reason I had them on my resume was to indicate that I have experience writing code in them. I like your idea of listing something under "Currently used" and listing the others under projects. That way, there is less chance for ambiguity.