i have a 2009 macbook. occurring frequently enough to be annoying, sometimes i will be typing something, and i will suddenly be space bar scrolling down the page or erase a word a few words back or suddenly jump somewhere or activate random hotkeys.
i realized that this is coming from a small amount of extra pressure I sometimes add to the wrist rest area. I love macbook trackpads, but i have to ask if this issue occurs with newer models? i know some good PCs that don't have this issue, and although two finger scrolling (which is really the main thing i like about macbook trackpads) isn't as smooth, i'd rather have a bit jumpy scrolling than this annoying typing obstruction. i would imagine not with the unibody and aluminum construction