I've seen some of the discussion related to SteamOS and the Raspberry Pi. Looks like SteamOS has no ARM support, so that is likely to be a hurdle. Something sim

I've seen some of the discussion related to SteamOS and the Raspberry Pi. Looks like SteamOS has no ARM support, so that is likely to be a hurdle. Something similar is Limelight which streams your computer to a PI including keyboard and mouse support, but is only compatible with a Nvidia 600 or 700 card.