The time for Linux gaming is finally almost upon us! Valve has confirmed that SteamOS will be released tomorrow, December 13. On the same day, 300 prototype Steam Machines and Controllers will be sent out to participants of the Steam Machine beta test. With sorrowful catch in its throat, Valve says that the hardware beta test will only take place in the US, due to the "regulatory hurdles" of sending prototype hardware out of the country -- everyone and anyone will be able to download SteamOS to make their own Steam Machine, however.