Currently, I have no intention of buying any portion of Valve's living room setups. Also, I think they timed this really poorly with the PS4 and Xbox 180 only two month away.
Having said that, though seemingly alien in design, I applaud Valve for trying this. PCs no longer lead the market, monitor size and resolution are stagnating, and the upcoming consoles are mini PCs.
I still prefer the PC for a collection of reasons (uprgradeability, game modability, strong indie market, multi-tasking, work functionality, graphical excellence, genre depth and maturity, etc.,) but the consoles are starting to take on some of those items.
All those items aside, one of my personally most beloved items of PC gaming is the mouse and keyboard input, though I have a 360 controller because some game types play better with it. On the console side, there is little to no appreciation for non-gamepad controllers, even if the reverse is true - the keyboard and mouse are superior to gamepads for some of the most popular game types.
From that perspective, if you're Valve and want to move the PC to the living room or move a console-only gamer towards PC gaming, you have to broach a new a shared input, either giving multiple options or coming up with a radically new style that attempts to offer benefits of both styles.
Again, I don't see myself picking this up anytime soon, but I certainly applaud them for trying to come up with the new controller style.
Meanwhile, stick to PC to TV streaming options.Just waiting for Valve to announce the HL3 exclusive

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Ray
Everything is awesome!!!
http://www.kindafunny.com/I love you, mom.