I had exactly the same thought about the new tab. Kindles and OSX devices (among others) can already give an intrusive popup with a translation or definition.

I had exactly the same thought about the new tab. Kindles and OSX devices (among others) can already give an intrusive popup with a translation or definition. I'm an intermediate German speaker and even to me the language in the example story felt weird. I'm totally into the idea, and if the usability was better I'd probably use the site despite the non-idiomatic text.