@amoroso I can't say "most", it's hard to tell, because I go back and forth between the Psion and PC every few hundred words but I do know that I've done almost 40 hours of writing on the Psion going by battery time. I can't say how much of the book that makes up of the six months I've been working on it, probably less than 25%, but it's still a solid amount of time put into such a tiny computer and it has been essential to progress. ~90% of one 13'000 word chapter was written solely on the Psion as an example of where it took the lead.