> I'd rather say that p9p software is the source these days. I wouldn't agree, p9p is a fork, much stuff gets ported both ways, though some changes may have been missed.
I still use troff and tbl on plan9, occasionally I use eqn, last week for the first time in ages. I know there are some bugs but I find it much easier to generate a simple document in troff than with MS Word, its a metter of what you are used to. I'am sure latex is capable of genatiing better documents, but i have never had the need to learn it so I don't use that. Troff is good enough for what I need. -Steve