That was an unsourced claim which Valve denied ("There's no Linux version that we're working on right now. ", Aug 2010). http://www.gamesindustry.biz/articles/

That was an unsourced claim which Valve denied ("There's no Linux version that we're working on right now. ", Aug 2010). http://www.gamesindustry.biz/articles/2010-08-12-valve-on-steam-part-two-interview?page=2 http://www.gamesindustry.biz/articles/2010-08-12-valve-on-st...