The X server does what it needs to. I have few complaints about it and it seems to do the trick for what most people need to do. It's integration with games seems to also do what it is supposed to since it hardly touches it. The games need to rely on glx support on the video driver level on...
Give this man 10 points! You are absolutly right. If all the HL linux community would just dissapear, the rest of the community would be devistated. Imagine, the fastest most popular servers just going *poof.* I would cry.
Ahhh, good ol Linux. This post, http://www.halflife2.net/forums/showthread.php?s=&threadid=1021 , has TONS of good MS vs Linux vs Macintosh points. Shuffle though some of the spam and a troll called KaptianKiller and it's a good read. Speaking of which, I just saw a good quote on that thread:
Short answer is yes. If the Vampire game is going to have a multiplayer, then the same wallhacks/nethacks/whatever could be made to work with games based on the same rendering engine and allow people to cheat.