It’s interesting that some engineers went on to work with Be, and then a bunch of engineers from Be went (back, for some of them) to Apple early in the MacOS X era. There are things you can trace back to the Newton across companies like that.

Another thing was text selectors, where you could do things with random text, depending on what it was supposed to represent (open the web browser when taping a link, open the phone app when tapping a phone number, track parcels, show a place in Maps, things like that). Nowadays, it is everywhere, but it was a nice feature on the Newton.

AFAIK this was the inspiration for Microsoft's database filesystem attempt that almost killed a Windows release and ended up never seeing the light of day. I can't even remember its code name.

By the way it was similar to the memory design of Multics back in the early 1960s, (though Multics' final implementation was slightly different)

Palm used that too.