Noedit: Badspot, you COULD break the floathack by tweaking the way the server handles movement packets such that if it doesn't get anything, it will just drop the player down and apply all the proper effects, same as if the user had just stopped touching any controls. At least, I think you could; I don't know how torque works so I couldn't quite judge that myself.
As is, if you stop pressing all keys in midair, you drop down like gravity, but if you lag and no packets are sent, you sort of freeze in midair. I mean, could you adjust the no packet behavior to match the no keys pressed behavior?
It might mess up people who lag really bad, but it would break a good third of the hack pack.