So far I have tried the following outliners among many others with linking (and perhaps with date/time insertion) and kinda like these two most:
Sharp/Cacko: Ebt
A very interesing outliner app under active development. Different from most other outliners the notes use cross-linking and not strict hierarchical arrangement. Also supports hyperlinks and grapics insertion (perhaps other stuff in the latest version as well). I only tried up to 0.3.x long ago and couldn't get HTML export working. Perhaps things are much streamlined now. I happen to see the app now branches into two different versions, Ebt and Ebt lite, but haven't tried them yet so can't tell you more.
Developer's site:
http://tio.cocolog-nifty.com/irrational/zaurus/index.htmlPrevious discussion:
https://www.oesf.org/forums/index.php?showtopic=9963pdaXrom: NoteCase
Similar to TuxCards, NoteCase also organize notes hierarchically. Although the interface is less good-looking than TuxCards' and does not have date/time insertion, NoteCase can take web links and file links. Export to HTML and TXT work well, despite the simple formatting. It can also import from XML, which I haven't tried. It is GTK app so the current multi-language inputmethods (SCIM, UIM, etc) work very well with it.
Developer's site:
http://notecase.sourceforge.net/Previous discussion:
https://www.oesf.org/forums/index.php?showtopic=16816 (There is also a simple GTK journal taking app Cire, which I also like very much, discussed in this thread)
There are also VIMoutliner and the plannel plugin for Emac which are working in Zaurus, but they still appear to be meant for programmers mainly because of the myriad collections of commands and syntax.
Also, I remember there was some discussion about GTDTiddlyWiki (
http://shared.snapgrid.com/index.html ), and I'm not sure if it is working with the browsers on Zaurus.
Hope it helps.
Really look forward to seeing more discussion about outliners and other practical solutions in the forum(s), apart from the wealth of hacking and tweaking information.