Punkbuster is on Half-Life too, I didn't dload it, since I like taking out those who use the speed hack (they are so easy to kill since they can't control themselves because of too much speed). Also, it shouldn't be too hard to make an anti-cheat prog for JJ2 that servers could use to auto-kick/ban cheaters, but I also think that to truely eliminate the cheating, we need the JJ2 source code and someone to patch the game so that the progs won't work at all.