Lets just take a moment and assume that it is Intel they are partnering with, given the only other companies making graphics cards are obviously not going to pull away XFX or Evga from Nvidia.
If EVGA is endorsing Intel's GPU then i'd say thats a pretty safe sign that Larabee has a great deal of merit. If this were some medium end AIB like Powercolor or PNY that'd be one thing, but EVGA and XFX are pretty big players in Nvidia's book - and if its true that these 2 companies are breaking away from being Nvidia exclusive to be a board partner with Intel, then its pretty obvious that they know a great deal about Intel's GPU that we don't.