Following our news post on Friday regarding this matter, Mr. Gordon was asked on Twitter as to the Unreal Tournament 3 Linux status. Ryan's response is "still on its way. Being poked and prodded and optimized and stuff." This is effectively the same response that was provided back in March where he was optimizing and fixing annoying bugs.
Ryan is not a novice developer when it comes to porting games and other software from Windows over to Linux, and it should not take nearly this long. It was back in September that he showed UT3 running on Linux.