Not bashing just stating my opion,
Wingznut PEZ"...running UT and Deus Ex. Not to mention that 3DRealms has already said that DNF will run better on 3dfx hardware."
I beleave not to far back 3dfx was @ the top of the ladder, calling the shots, this was not to long ago they came out with the Voodoo chipset, ofcourse I was the first on the block to rush to the store and pay $200 for a 4 mg card. I fell in love it complimented my V550 perfect! 3dfx stickers started popping up on all the popular titles, I did in no way think 3dfx was a "fad" @ the time. But now it has seemed to be to a point. (3dfx was everywhere, influencing all the new games and even SEGA for awhile there new super next gen system was going to be based on 3dfx chipset! Around this time, games where coming out, Unreal was 1 of them 3dfx being so big and looked like it was going to be the future of gaming hardware Unreal developers decided to base there whole engine on glide. (only several later months patching so decent open gl was avaible) As you probally know UT was based on the original ENGINE, which chopped up d3d/opengl surrport added. You probally also know that DNF is based on a heavily modified UT (which looked to have a advantage @ the time 3drealms was original using the Q2 engine which was unsurperio to the UT imho UT had the most features @ the time, (Q3 engine wasnt available, DNF was able to use UT techonology before the game came out. Now 3drealms is just adding d3d/opengl surport in after to a engine that was completly based on Glide. I don't know about Deus Ex, but im sure theres a explanation for that game to. The quake-engine line has allways been popular with game makers, alot of the top selling game have used it, Quake2 was used to bench mark for along time. Q3 is widely popular with mods and companys have allready signed up to use there Q3 engine technology, so maybe thats why its so oftenly used?
PS sorry bout the bible, and the spelling