I realize this probably isn't what the OP wants, but I use the outlining mode of Vim 7.0 on the N800 for any document more than a page long. You can see documentation at http://www.vim.org/htmldoc/fold.html.
By the way, for outlining, I use what is called "marker" folding in the documentation---one of five different folding methods, several of which are useful for outlining. You can open and close folds using screen taps on the N800 if you say something like
set foldcolumn=3
This will give you a graphical representation of the folds in the first three columns. If you also say
set mouse=a
you can then screen tap on the graphical representations for opening and closing folds. The marker method should work for writing in any language that allows comment characters, e.g., I organize my papers and programs as outlines, using LaTeX for papers and various languages for programs. Obviously Python programs already look like outlines so it's not needed for those. There are several Vim projects to make more complete outliners, but I have not kept up with any of them since the built-in thing does just barely enough for me.
As I said above, I realize the OP is probably looking for a program intended to be in the outliner genre, which Vim is not. I have purchased many, many, many of these outliner programs over the last twenty years and have archives of many, many, many inaccessible files in various formats, some of which are discussed at http://www.outliners.com/, a site that doesn't really go into the PalmOS products like Natara Bonsai, but does get to the general spirit of "information hiding" through outlining. Despite many great designs, I keep coming back to plain text as a long-term storage medium, hence Vim. I do have a couple of outliners on my Mac, OmniOutliner and Inspiration, and I keep expecting Chandler to appear with a cool outliner, but I doubt that I'll ever trust any of them like Vim with markers.
well, it won't help you today but.... I liked/needed Progect so much I wrote a version for the Zaurus at http://www.janerob.com/rob/prozect , and I fully intend to port it to n800 (all free this time) ... which hopefully arrives with my sis-in-law around the 27th june :-). prozect depends on the qt tree widget code, hopefully there is something similar to work with in gtk+.
well, it won't help you today but.... I liked/needed Progect so much I wrote a version for the Zaurus at http://www.janerob.com/rob/prozect , and I fully intend to port it to n800 (all free this time) ... which hopefully arrives with my sis-in-law around the 27th june :-). prozect depends on the qt tree widget code, hopefully there is something similar to work with in gtk+.
Well, thanks in advance for your efforts, then!
Today I decided to purchase Natara Bonsai which is anyway far more integrated with the PIM section, so that as far as my TH55 keeps alive I will have something to work with. Unfortunately, Progect was enough powerful for my needs but its desktop counterpart was doubling all of the records once synchronizing / Hotsync-ing
Now I will wait for this version of Progect in order to give it a try
I realize this probably isn't what the OP wants, but I use the outlining mode of Vim 7.0 on the N800 for any document more than a page long. You can see documentation at http://www.vim.org/htmldoc/fold.html.
...
I'm keen to get vim working on my Nokia 770 just for this purpose. I'm encouraged that you've succeeded. But vim doesn't install properly from the Maemo download section. There is a missing library called libnt6 and probably some others. I'm hoping someone will provide the missing pieces.
I hope it runs good, on my 633 MHz lappie it becomes unresponsive (the windows), and I have to kill the processes because it never does anything for ten minutes of waiting.
I swear Nokia has outdone themselves on capabilities on these devices. It could *almost* replace an actual computer.
