Wocvim is a WoC client for Vim. WoC is a protocol which enables the use of hyperlinks in plain ASCII texts. The links can point to local or remote locations. The protocol is specifically designed to support source code, but it can be used in any text. For source code, it's also possible to use ad-hoc tag generators like cscope and ctags.
rospell is a UTF-8 text editor for programmers and general use. It features syntax highlighting, a code beautifier for C and C++, and support for gdb, ctags, grep, diff, and merge. It includes spellers for English, French, German, Spanish, and Romanian languages. Romanian aspell and hunspell dictionaries are also available.
jHepWork (jWork) is an environment for scientific computation, data analysis, and data visualization for scientists, engineers, and students. The program is fully multi-platform (written in Java). Programs can be written in the Java, Jython/Python, and BeanShell scripting languages. Matlab/Octave is supported for symbolic calculations. The program can be used to display data and functions in D and 3D. It comes with a friendly IDE and a code assist.
Itadaki is a Japanese language toolset integrated with OpenOffice.org, providing tools intended for students and translators of Japanese. Its features include the automatic addition of furigana (reading annotations) to Japanese text with a high degree of accuracy, and a fast built-in dictionary. Itadaki is a cross-platform application compatible with OpenOffice 2.0 or better on any supported platform.