WideStudio is an Integrated Development Environment (IDE) for building window applications in C++, Ruby, Python an Perl for Windows, MacOSX, Linux, FreeBSD, SOLARIS and other unix and BTRON and T-Engine. This is open and free (under MIT/X Consortiun Lice
POESIA= Public Opensource Environment for a Safer Internet Access
an opensource Internet content filter (multimodal, mulitlingual) aimed for protection of youth (in schools...); partly funded by the European Commission
The Virtual Laboratory for Earth and Planetary Materials (VLab) collaborative GRID-based environment. Concentrating on scientific computation workflows and auto-generation of visualization services. http://vlab.msi.umn.edu