Your mention of the poor touchpad accuracy really brought the frustration back to me. That may have been the single biggest issue that drove me to stop using mine. It's a shame, the XO had so much potential, but the problems you mention doomed it. Much like the Aptera electric car around the same time (off topic, but that was a similarly bold product that ultimately failed by a death of 1000 bad design decisions despite a lot of good ones).