Steam’s streaming functionality allowing you to stream games from your main gaming machine to any PC around the house has been in various beta stages since the last year. While open beta meant that almost anyone could use it, the full release means total availability, as long as your OS is supported. It still only supports streaming from Windows (Vista, 7, 8), but the client will work on any OS Steam supports. The support for non-Windows hosts will come later. So, enjoy playing games on any PC in your house.