Rather lackluster in my opinion. It is a "me too". Intel Knights Corner does not make any leaps ahead of the competition. It is neck and neck. And performance per watt improvements? Marginal given they havent launched yet and the competitors architecture is more than a year old. According to Moore, Intel should be at least 2x ahead of last years offerings from nV and AMD.
In fact, they are probably behind. That chart (slide 5) with 1381 vs. 1380 was finagled for the boss so that the team didn't lose their jobs!
... some things in life just drive you bonkers. Especially the rubbish you see in forum posts