ZSRep (Zaurus Synchronization Repository) is a project whose main goal is to provide a professional cross-platform solution for synchronizing one's SharpZaurus with any Desktop PIM software on the Linux or Mac OS X operating system.
The iChilli mobile J2EE platform provides a J2EE compliant runtime environment for both server and mobile platforms, such as J2ME, MIDP or other CLDC based devices. For example iChilli runs on the PersonalJava enabled SharpZaurus and Compaq's iPAQ.
DarkStar is an HTML Editor for the SharpZaurus. It is developed using C++ with Qt/Embedded.
Its goal is to become a very full-featured development tool while retaining simplicity and ease-of-use.