I am currently posting from my T420 and giving up this keyboard when the time finally comes will be a very sad day. I would gladly take a little more girth on a newer laptop if it meant I could have a real keyboard instead of typing on zero travel chiclet keys. I think the constant drive to make laptops a tiny bit thinner every year has been a detriment to usability. Luckily I have upgraded the display on my poor old T420 and don't use windows, so I still have some years before I have to think about it too hard.