Incredible site design, I've never seen "put the content first and get out of the way" taken to such extremes. Has anyone else got any great examples of this?

Incredible site design, I've never seen "put the content first and get out of the way" taken to such extremes. Has anyone else got any great examples of this? I can see why some dislike the UI, but personally I think it works very well; it's making me rethink my own web app design to see whether I couldn't learn something from this. I bet the conversion rate from views to sign-ups is fantastic. Hear something you like? Want to favourite it? Sign up and it's done. Very slick, very smart.