Futuristic telecommunication devices were popping up in movies and TV shows long before the actual invention of the cellphone. As the title sequence of the new movie “BlackBerry” attests, the flip-open communicators of “Star Trek” and the videocall screens from “2001” and “Blade Runner” predicted the accessible technology of our age. Yet what the legendary BlackBerry devices of the late ’90s and early aughts gave us was something less advanced but no less important: the pleasing feeling of typing with one’s thumbs.