GetMeDone is a task manager in the spirit of Getting Things Done. It uses PostgreSQL as a backend and is written in Tcl/Tk. Currently only tested on Linux, it should be easy to extend to run on Mac OS and Windows. It features easy filtering of contexts, priorities, and time, advanced recurrent tasks, linking tasks to projects, deadlines, an ideas list, and the ability to defer tasks to future dates.
Git is a "directory content manager" that was designed to handle massive projects such as the Linux kernel with speed and efficiency. It falls in the category of distributed source code management tools and is similar to GNU Arch, Monotone, and BitKeeper. Every Git working directory is a fully-fledged repository with full revision tracking capabilities and is not dependent on network access to a central server.
GVI is a voting GUI. It can potentially be used for any private or public election, and it comes with a demonstration package based on an actual general election. It can handle write-ins and multi-language elections, and it can automate voting along party lines. It can be used for advanced election methods, such as Condorcet voting and Instant Runoff Voting, which allow each voter to rank the candidates (1st, 2nd, 3rd, etc.). It can also be used for Approval Voting, which allows each voter to select more than one candidate (without ranking them). It can also be "downgraded" for conventional plurality elections. It provides scripts for counting the votes and determining the winner based on plurality, Approval, or Condorcet rules.
GraphicsMagick is a robust collection of tools and libraries which support reading, writing, and manipulating an image in over 90 major formats including popular formats like DPX, DICOM, BMP, GIF, JPEG, JPEG-2000, PDF, PNG, PNM, SVG, and TIFF. A high-quality 2D renderer is included, which provides a subset of SVG capabilities. C, C++, Perl, Tcl, and Ruby are supported. Originally based on ImageMagick, GraphicsMagick focuses on performance, minimizing bugs, and providing stable APIs and ABIs. It runs on all modern variants of Unix, Windows, and Mac OS X.
Hamster Font Manager (HFM) helps you control the avaliability of fonts in all of the supported applications from a central place. It includes modules to support X11, Ghostscript, and TeX. A PostScript module handles PS Fonts while other fonts remain untouched by this program. It features a nice Tcl/TK GUI. For X11 configuration to work, this software has to run on the machine's own X Server.
Hanzim ("Hanzi Master") is an interactive visual dictionary for learning and seeing relationships between Chinese radicals, characters, and compounds. All the characters with a given radical, phonetic component, or pronunciation can be displayed, and all words containing a character, with English meanings. All data is stored locally. Either simplified or traditional characters can be used.