Seems to be that recalibration is the culprit. From what I can see, recalibration just makes it worse and worse. I've had some success by drawing myself a little map, and then intentionally recalibrating "incorrectly" according to the skewing map. A few iterations of that, and it's almost usable. Usable enough for me, but my wife still won't stand to use it for her facebooking (quelle dommage!)