I don’t think it’s just nerds. I think the idea has quite a bit of mass appeal [1], it’s just that existing versions are in some way unsatisfactory. the phone is already on its way to replace our wallet and I think it’s just a matter of time for it to replace our laptop bag. I’d very much welcome that if it could do all the things I’m doing on my Thinkpad, it’s just that human interface and OS are not there yet (meanwhile the chip, RAM and storage is not a problem anymore). Give me character input solution that’s >60% of a Thinkpad and maybe a fold-out screen that doubles the area of a 6inch device and you got it, for more I’m gonna sit at a desk with docking.
[1] see for example the movie “her”.