Makagiga is an open-source, easy-to-use, portable application for doing a variety of tasks, such as todo listing, text editing, or RSS reading. Plugins are used to implement its various capabilities.
It requires Java and it is recommended to use the Official Java.PND from the repo.
Probably the best PIM available on Pandora now (and I'm not saying that because I packaged it!). Really practical and fit the Pandora screen perfectly.