Ovm is a framework for building programming
language runtime systems. The current emphasis is
to produce a Java virtual machine compliant with
the real time specification for Java.
OpenMCL is an Open Source version of Digitool's excellent Macintosh Common Lisp (MCL) implementation, which runs on LinuxPPC and MacOS X. It features a native code compiler, multithreading support, and good ANSI CL compliance.
The Horde calendar application.
A hotel booking and accounting package.