I'll probably get hate for pointing this out but other than Tablets this is the one place where Win 8's metro GUI actually works well,
You forget that Microsoft would be a direct competitor in the console market. Doesn't sound like a good idea to build your console around their OS. They would probably refuse out of hand, and even if they accepted you'd be at their mercy.
with both Valve and Sony bringing X86 based consoles to market its gonna be another golden age for us PC gamers,[..]its a great time to be a PC gamer regardless
Enjoy it while you can, because it's not going to last. As the vast majority of personal computing users move to smartphones, tablets and living room devices, the PC market is shrinking.
Who's gonna remain?
* Corporations, with all the virtualization and cloud going on, may very well go back to thin clients. Even if they don't, they usually go for standardized workstations, they have no use for interchangeable parts and tinkering.
* Gamers? I have a nagging suspicion that their vast majority wouldn't mind consoles if they got a mouse and keyboard alongside the controllers, and if Valve or anybody else will give them that, it's bye bye PC.
* Pretty much the only niche left for the PC will be professional power-users such as multimedia, music, 3D modelling, CAD, programmers, ie. specialized software on high-end hardware. But it will be a fraction of the current PC market, which might make it into a very different beast.
A decade from now we may very well look back on the PC of today the way we now look back on the golden days of Amiga and Commodore 64.