Comment 50 for bug 1026046

A workaround is to use the mtrack driver if it supports your touchpad driver. Install xserver-xorg-input-mtrack, then create a file in
/etc/X11/xorg.conf.d/10-mtrack.conf like the following:
http://pastebin.com/WvZmKwMV

Of course, this isn't ideal as you have to use gestures for things like right-click, and doesn't work with unity autohide, but solves the problem of finger resting.