Severe ME/CFS: A Guide to Living was written entirely on phone by Emily Collenridge, someone who suffered from very severe ME/CFS (one of the illnesses with lowest Quality of Life) and could only use her phone for brief moments. Over years, writing a tiny bit each moment she was able to use her phone, she wrote her book which was published.

This book is really invaluable to the patient community as it is one of the only ones we have, since most people with that level of illness aren’t able to communicate at all.

Sadly she died in hospital a couple years later, in her early 30s.

Here is a wiki page if anyone is interested https://me-pedia.org/wiki/Emily_Collingridge

It probably happens already with some web-serials

How about on a phone via messaging: https://www.abc.net.au/news/2019-01-31/behrouz-boochani-wins-australias-richest-literary-prize/10768688

Boochani wrote his entire book on his mobile phone and sent it in bits and pieces over years to translator Omid Tofighian via Whatsapp.

I'm seeing teenagers writing reports on the smartphone while sitting in front of a full computer keyboard... They say it's faster...

I wrote a book of short horror stories mostly on my phone in snippets, just using a notes app. Only the final edit was on a laptop.

There are LN writers who switch between their phone and their laptops.

They will probably write prompts

My entire comment history here, and the last 10 years or so on Reddit have been exclusively from a phone. Weeks go by that I don’t touch an actual Mac or PC anymore.

this has similar energy to boomer posts about millennials someday joining the workforce

Most of the short stories or ideas I have written down in the last 10 or so years have been on my phone; nothing published, though. I can type faster with my thumbs now than I can using a regular keyboard since I am so out of practice using a keyboard to type. Used to average 120WPM.