KDevelop is an integrated development environment which makes the creation and development of applications an easy task even for beginners. Highlights of the current release are: an application wizard for easy creation of KDE 4, Qt4, GNOME, and terminal C/C++ projects, full project management, a syntax-highlighting editor, code completion, an integrated dialog editor for the Qt/KDE GUI libraries, an internal debugger, a full-featured class browser with class tools, CVS and SVN support, an integrated HTML-based help system offering manuals and class-references, and extensive search mechanisms to browse sources and documentation.
Phpmole grew out of a port of Moleskine, since then it has grown and been redesigned to be a framework for a modulized development environment. For users it offers syntax highlighting, integrated help, a WYSIWG HTML editor, and remote file management, along with being midgard compatible. For developers, it is a modulized, object based php-gtk application, which could be extended to do almost anything - including reading mail.
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.
The edit-on JavaBean SDK is a customizable, feature-rich JavaBean that allows developers to add WYSIWYG editing functionality to their AWT- or Swing-based applications. It features an intuitive word processor-like user interface that enables XHTML content authoring with XML markup, and has a royalty free run-time license.
The Orangevolt XSLT Plugin for Eclipse provides XSLT support to the Eclipse platform. It is the Eclipse-based successor of the Java/Swing-based ROXES XmlWrite XSLT editing environment. It provides many great enhancements when working with XML inside Eclipse. It implements XSLT launch configurations, XML editor enhancements, configurable XML outlines, an xpath navigator view, and more.
Notes/Tasks is a GTD compatible multi-platform note and task manager. The focus is on quick, intuitive access to any note or task by project or full text search. It features synchronization with notestasks.com, giving you free access to your notes and tasks from anywhere via the Web.