Symja - Java computer algebra language & symbolic math library
A hex editor Eclipse plugin and multi-platform desktop application
CAM XML Editor for XML+JSON+Hibernate+SQL Open-XDX sponsored by Oracle
EditBox is the Eclipse plugin for source code background highlighting.
Encrypt and manage secret text data
a DSL for type systems, reduction rules, interpreters for Xtext langs
Product Backlog Eclipse connector for Mylyn
Simply text editor for php, jsp, html, etc...
Octave Eclipse GUI
Facebook & Google Chat for eclipse in perfect camouflage. Enjoy