I for one think id isn't loosing too much sleep over HL2. Remember that we are on the verge of new engine technologies here, and there is more at stake here then there was during the relatively petty and shortsighted bickerings of the past (Remember MoHAA vs. RTCW?)
Even if DOOM 3's gameplay and replayability turns out to be Teh Suck and only a handful of fanatics buy it, as a mere tech demo it will still blow away 3rd-party devs looking for graphical superiority in their titles. Thus more millions in licensing fees to fuel Carmack's rocket engines, and id moves on.
I honestly don't see it as some sort of Duel of the Engine Titans. As it has been since Unreal I, it's all about choice.
This comment was edited on Jul 24, 05:10.
"Nothing livens up a robotic hymn of doom more than an amazing pair of jugs." - Brak