x11: howto disable rogue touchpad?

[Quartz]

> Typing, for instance, a text for a report, with hands layed down on the
> chassis, turns into a horror: while typing, suddenly you get close enough to
> the touch thing and suddenly the carret jumps randomly into another portion of
> the text. That happens in editors running in X11/windowmaker or any other WM I
> tried so far.

Isn't there a way to hook the mouse into the keyboard key repeat delay 
such that the system ignores mouse input while typing? I know OSX and 
Windows have this built in, I swear I've seen it in X too.... maybe a 
gnome or kde specific thing or some package?