gjots lets you organize text notes in a convenient, hierarchical way. It can be used for notes, jottings, bits and pieces, recipes, and even PINs and passwords, using encryption. It can also be used to "mind-map" larger compositions like manuals, Web pages, articles, etc. It is a bit like the KDE program "kjots", but uses the GTK library and supports a hierarchy of folders. Files can be output to HTML with an automatic table of contents or to docbook XML. Encryption is supported with ccrypt(1), gpg(1), and openssl(1), so that musings can be kept private.
Zenity is a tool that allows you to display Gtk+ dialog boxes from the command line and through shell scripts. It is similar to gdialog, but is intended to be saner. It comes from the same family as dialog, Xdialog, and cdialog, but it surpasses those projects by having a cooler name.
BitRock InstallBuilder allows you to create easy-to-use multiplatform installers for Linux (x86/PPC/s390/x86_64/Itanium), Windows, Mac OS X, FreeBSD, OpenBSD, Solaris (x86/Sparc), IRIX, AIX, and HP-UX applications. The generated application installers have a native look-and-feel and no external dependencies, and can be run in GUI, text, and unattended modes. In addition to self-contained installers, the installation tool is also able to generate standalone RPM packages.
Genius is an arbitrary precision integer and multiple precision floating point calculator. It includes its own programming language similar in some aspects to C, bc, or Pascal. It can deal with rational numbers and complex numbers. It has matrix support as well. It uses the gmp library so it is very fast for calculations of large numbers. It has a command line and a GNOME interface. The GNOME interface supports plotting functions and 3D surfaces.
The GNOME Structured File Library is a utility library for reading and writing structured file formats. Support for MS OLE2 streams is complete, as is zip import. There is also support for document metadata and some initial work on decompressing VBA streams in OLE files for future conversion to other languages. This library replaces libole2 and is used in gnumeric, mrproject, abiword, libwv2, koffice. It is also part of the AAF format.
Alexandria is a GNOME application to help manage a book collection. It retrieves book information (including cover pictures) from several online libraries, allows you to search for a book (either by EAN/ISBN, title, authors, or keyword), can import and export data into ONIX, Tellico, and EAN/ISBN-list formats, generates Web pages from your libraries, allows marking your books as loaned, saves data using the YAML format, features an HIG-compliant user interface, shows books in different views that can be filtered or sorted, and handles book rating and notes.
PPort is a simple yet handy automation program and its documented counterpart for interfacing a PC with external electronic devices. Using its two programs, a daemon and a client, it aims to control external apparatus by reading and writing through common computer ports. Using this bundle, one can successfully control any household appliance or electronic device with minimal hassle and practically no changes.
Sagasu is a GNOME tool to find strings in multiple files. The user specifies the search directory and the set of files to be searched. Double-clicking on a search result launches a user command that can for example load the file in an editor at the appropriate line. The search can optionally ignore CVS directories. Sagasu is a Japanese word that means "to search."
Mail Notification is a status icon (aka tray icon) that informs you if you have new mail. It works with system trays implementing the freedesktop.org System Tray Specification, such as the GNOME Panel Notification Area, the Xfce Notification Area, and the KDE System Tray. Mail Notification features include multiple mailbox support, Evolution, Gmail, IMAP, Maildir, mbox, MH, Mozilla products, POP3, Sylpheed, Windows Live Hotmail and Yahoo! Mail support, SASL and APOP authentication support, SSL/TLS support, automatic detection of mailbox format, immediate notification, message popups, and HIG 2.0 compliance.