Phoronix: The State Of XReaL, OpenWolf Game Engines

While this week saw the release of the Doom 3 BFG source-code and word that a Sauerbraten update and a major Alien Arena advancement advancement are forthcoming, what's the state of the impressive XReaL open-source game engine and the similar OpenWolf engine?..

http://www.phoronix.com/vr.php?view=MTI0MDE