Prozect is a hierarchical outliner and todo list application for the Sharp Zaurus. Its features include:
Prozect's source code started out as ZOutline by Serge Stinkwich. ZOutline works only under qvfb and accesses two compiled-in outlines.
The source code for Prozect 1.0 is available here. A free, save-disabled demo and a US$7 full-function compiled executable (ipkg) are available at Handango.com.
Update 14 July 2007: you may still buy the Handango.com version, however I am selling my Zaurus and moving on to other projects. I am therefore making the 1.1.0 version freely available here: (ipk) (source code)
I include this section for anyone interested in developing Zaurus software to sell. The 'downloads' counter on the Handango page includes downloads of the demo.