My sister posted something about this on facebook today and so I've only just started looking at this myself, but I'm already amused with it.
It's free, which is great, and I do feel like it will help me learn other languages a little bit. I'm already 4% fluent in Spanish!
So if you are interested in learning another language(s) this may be something for you to look at. I'll probably post something about this again in the future once I've spent more time with it.