Quote:
Otherwise, the part of one hand below the thumb (what's that called, anyway?) will tend to rest on the touch-pad while typing, producing ghost touches/moves.

It is definitely fixed in software. I assume the touchpad driver simply ignores large contact areas with minimal force on the top half of the pad. A finger on the pad would be a small circular pressure point and I'm sure it would be easy to detect and distinguish.

I say definitely in software as I never have an annoying input on my Macbook in OS X, whereas if I boot into Ubuntu the stupid bloody thing has a mind of its own clicking all over the place when I am typing. This is fixed with loading the synaptic touchpad module and adding a big bunch of options for it in the X config.
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Hussein