Learning Spanish is fun...but really would love to be learning French or Greek...is either coming soon?
This was posted in March: "We started Duolingo by allowing English speakers to learn Spanish and German. As of this week, Spanish speakers can now learn English, and we expect to have French in April." http://blog.duolingo.com/post/20142464554/we-have-a-blog
So I guess they got delayed a little.
I think you can be pretty sure it's coming. Whether sooner or later... who knows?