Based upon id Software's Quake 4 Linux release, we thought the Enemy Territory: Quake Wars release was just days away. However, Timothee Besset (id's Linux guy) has posted in an a ET:QW community update that the Linux client is coming in "a few weeks." This time now is spent on optimizing the client code.
I don't like saying this but I'm disappointed. You could look at this and say that at least they are releasing a Linux version, though. I haven't even picked up my copy from the game store, and I most likely won't until the Linux installer comes out... no point in getting it beforehand.