House of Languages taught me some Spanish that I can remember a few weeks later, that's more than I got out of high school. It's a cartoon raccoon named Mr. Woo with a top hat walking around teaching you a foreign language, how can you not love this?
It's immersion education you can take with you. It's polished, fantastic art direction, very detailed, and doesn't drop frames. This is a glimpse into the future of education.