calibre is meant to be a complete e-library solution and thus includes library management, format conversion, news feeds to ebook conversion, as well as e-book reader sync features and an integrated e-book viewer.

GTD Tiddly Wiki is a GettingThingsDone adaptation by NathanBowers of JeremyRuston's Open Source TiddlyWiki. The purpose of GTD Tiddly Wiki is to give users a single repository for their GTD lists and support materials so they can create/edit lists.

good manual on bazaar and version control in general

The Hipster PDA (Parietal Disgorgement Aid) is a fully extensible system for coordinating incoming and outgoing data for any aspect of your life and work. It scales brilliantly, degrades gracefully, supports optional categories and “beaming,” and is configurable to an unlimited number of options. Best of all, the Hipster PDA fits into your hip pocket and costs practically nothing to purchase and maintain.

Convert a Pocket Reporter Moleskine into a Hipster PDA. Stores cards loose and bound, stands easel-style upright, holds a pen, with room for PostIts and PagePoints.

Jython does its best to shield a Python programmer from the details of Java, but you'll still need to know some of those details to use Java objects and libraries most effectively from Jython.