2013: The year that Valve attacks

I lost a bet with myself at CES 2013. In the gaming preview we published ahead of this week's big show, I wrote, "As per usual, the games industry and CES are acquaintances at best -- at least from what we've heard thus far. Perhaps this will be the year that bucks the years-long trend, but we're not betting on it." Wrong. Wrong. But hey, this is one of those, "glad to be wrong" situations. NVIDIA shocked everyone with its first Tegra 4 device, Project Shield, which is essentially NVIDIA's first...