The full version of Wolfenstein: Enemy Territory has been released. This version includes the rest of the maps which, among other things, makes campaign mode more interesting. There’s no official announcement yet, but the file is available all over the place including:
Updates / Clarifications:
This is completely stand-alone and you do not need the original RtCW to play it. It was originally going to be a commercial product with a single-player aspect also, but both of those plans were axed and now it’s multiplayer only and free. As pointed out in the comments below, there is a BitTorrent Tracker available.