There has been a lot of interest from the Linux community on the Linux version of Enemy Territory: Quake Wars. Well, it appears that the wait is (almost) over, as the Linux demo client 1.1 is now available for download
. This 643MB demo includes one demo campaign with LAN and Internet game-play support. The full Linux client for the game isn't yet available, but it has been successfully running on a closed-beta test for a while, so it is expected to be released soon.