Valve has confirmed on its new Valve Linux blog that it will be bringing Steam and the Source game engine to Linux. Since 2011, a small team at Valve has been working on moving the Steam client and Left 4 Dead 2 onto the Ubuntu platform.
Valve plans on focusing on getting everything running in Ubuntu version of Linux first before trying to get it running in the other versions of Linux. Their goals are to get the Steam client on Linux with full functionality, optimize Left 4 Dead 2 to run at a high frame rate with OpenGL, and port other Valve titles.
Valve plans on having a full feature version of Steam running on Ubuntu 12.04. Left 4 Dead 2 was chosen to test out the game related features of the Steam client on Ubuntu.
Linux users can rejoice because Valve has listened to your pleas and is working on bringing Steam and their games your way.