The app is available for German, French, Italian and Russian. It's free on iTunes, and lessons are purchased on a "pay as you learn" basis.
According to Berg's Matt Webb on the company's blog, "I believe with Michel Thomas we've taken what's best about the experience and made a hybrid with what's best about the iPhone. . . What I'm proudest about is that this is a design-led product in a commercial marketplace. This isn't just for Michel Thomas fans (though there are many). By bringing the feeling of Michel to the iPhone, his courses can find a whole new audience, and a whole load more fans."