Steam client and Source Engine are being ported to Linux finally! Above photo is of Left 4 Dead 2, a Steamworks game based on Source engine, running natively on Linux.... No Wine library or anything else for "fake" support. This is on an Ubuntu 11.10 installation with the AMD Catalyst Linux driver.
Right now the game they have been working on the most for their Linux client is Left 4 Dead 2. Why L4D2? Basically because it is a stable code-base to do for their initial porting. They have plans to bring their other titles to Linux as well as lobby other game developers using Steam and the Source Engine to bring their games to Linux -- natively.
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