>>1 Op Likely because he does not own any legal intellectual rights to components that are made from both Sony and Microsoft, which he used to make the hybrid machine.
So if he was sell it he would likely be sued by Sony or Microsoft or both, or even get hired by one of the two companies.
So this guy could just could have built a PC which is more powerful then both console combined.
Also no it would not end the console wars, as the only people who keep that going are the fanatic fanboyz who will only follow their console of "choice" and will keep saying theirs is better over the others.