Samsung has a prototype with a 13" 2,560 x 1,440 display, which is close to the MacBook Retina. But it hasn't been confirmed for production yet. http://bgr.com/2012/08/31/samsung-series-9-laptop-matches-apple-retina-display/
This is the article ^
Its a bit disapointing... The only laptop with a 221 PPI isn't even confirmed...