Not only is this a total pain to get working in software, it has several serious flaws that make using it a very frustrating experience – Namely the fact that there was no way to tell which button you were pressing leading to frequent mistakes. In November 2013 I purchased a new ThinkPad T440s, this had the new clickpad design where the physical TrackPoint buttons had been replaced with software emulated buttons on the clickpad itself. Like many ThinkPad users, I use the TrackPoint pointing stick almost exclusively.
