While we can't give you conversational interaction with a human-level AI yet, I've been working for the past couple of years on a project for The Language Flags

While we can't give you conversational interaction with a human-level AI yet, I've been working for the past couple of years on a project for The Language Flagship (http://www.thelanguageflagship.org/ http://www.thelanguageflagship.org/) to try to solve the real-world context problem by creating a searchable database of re-usable multimedia resources for language learning, so that you can always give a learner new stuff. It's kinda like Duolingo, teaching you to translate the web, but with audio, images, and video along with the text. It's mostly vaporware still, but we do have some really nice tools for teachers for making playlists, video captions, transcripts, and annotations. Additionally, there's a startup here in Utah that we've been working with called MovieMouth, which produces software and auxilliary content for teaching language comprehension via popular movies (they get around copyright problems by only providing playlist files and original content like test questions, and requiring that end-users have independent access to the video media to feed into their software). They've been running beta tests, teaching English with Pixar movies, down in Chile .