OK, so Valve is making a console with Steam OS and their awesome controller.
Sign up for beta testing.
All I can say is that I've found the best Next Gen console. THESE THINGS ARE AWESOME.
Some of them have i7s and GTX Titans. Plus the OS is free to use: you can make your own Steambox OR partition a Mac so that you can play all the Steam games, including Windows ones. Or build yourself a console.
Valve is even making the CAD files for the case available for free. And the controllers will work on PCs with regular Steam.
All I can say is that if Half Life 3 is announced (they've patented it in Europe already, I think) then Valve has won the awesome company of the century award. Oh wait. They already have that award.
edit:
If Valve can do marketing right, I think it's safe to say that they will, hands down, make one of the most successful consoles ever. I like the idea of making a completely open system, and I think a lot of people will too. This will mean a bigger audience for indie games, everyone playing on the same servers, console or PC, and INFINITE BACKWARDS COMPATIBILITY.
Oh, and every game is supported with Valve's controller. And they're going to have to stop porting their games to other consoles, because the one thing that makes a console appealing to the average consumer is big budget exclusives.