Steam controller got physical buttons and dropping touchscreen. Steam controller is Valve's console to be used with upcoming Steam machines.
Here are the Valves Steam Machines specs on CES 2014. The specs for gaming rigs from Alienware, CyberPower, Gigabyte, iBuyPower, and more.
SteamOS is now ready to download and only Linux are encouraged to apply. Valve has made its release of SteamOS available for download.