A little off topic maybe but hey.
I'm pretty sure the whole console war to Microsoft and Sony is just a big self running advertising/marketing system. Think about it, you have people fighting to the death (Not quite) whilst screaming praises of their own console and ignoring/talking shit about the other. It makes a lot of noise and gets a lot of attention with very little effort on Microsoft and Sony's part.
I think Microsoft or possibly even the Japanese government might step in, Sony is one of Japan's biggest/well known companies and it would be a shamefurl dispray if they went under. Never underestimate the lengths they will go to to save face <.<
Either way, Competition is good and the more of it there is the better products become.
So Microsoft would be more likely to lend sony a helping hand if necessary than not. In my opinion.