GTK2 Text Editor is a simple Unicode text editor that supports many encodings. It works as a nice Notepad replacement, and can also be used as an encoding converter. It supports multi-level undo, right to left text (as in Hebrew), and other Unicode features. It can auto-close an XML/HTML tag. There is no syntax highlighting yet.
DCP Portal is a content management system with advanced features like Web-based updates, links, files, member management, polls, a calendar, a content informer, content sending by members, etc. It includes an admin panel, an HTML editor to add news and content, a mailing list, a search engine, content categories, a FAQ, easy setup, a publish in homepage option, .txt file import for content, multi-language support, a forum, a message system, a member agenda, and ad management. Members can submit news and content, write reviews, and receive the added content via email. The site design can be changed with one template file, It works with register_globals=off.
f/Calc is a utility to calculate lens formulae for photographers so you can focus on the artistic bits rather than on the mathematics behind it all. f/Calc can do "f" number arithmetic, and can calculate depth of field, hyperfocal distance, the field of view of a lens, the angle of view of a lens, magnification, and how the focal length of the lens on the camera changes the way the spot metering function works. In addition to the Unix/Linux Tcl/Tk version, there are native Windows, Palm OS, and Macintosh versions as well.