Falcon is ... ...an Open Source, simple, fast and powerful programming language, easy to learn and to feel comfortable with, and a scripting engine ready to empower mission-critical multithreaded applications. Falcon provides six integrated programming paradigms: procedural, object oriented, prototype oriented, functional, tabular and message oriented. And you don't have to master all of them; you just need to pick the ingredients you prefer, and let the code to follow your inspiration.
k in OOP, such as C+ and then Java which I started to play with its first alpha
The goal of XMLVM is to offer a flexible and extensible cross-compiler toolchain. Instead of cross-compiling on a source code level, XMLVM cross-compiles byte code instructions from Sun Microsystem's virtual machine and Microsoft's Common Language Runtime.
Cobra is a general purpose programming language with: * a clean, high-level syntax * static and dynamic binding * first class support for unit tests and contracts * compiled performance with scripting conveniences * ...and more
Clozure CL is an open source Common Lisp implementation that runs on PowerPC hardware under Mac OS X and Linux, and on x86-64 hardware under Mac OS X, Linux, and FreeBSD. A port to 32-bit x86 is progressing well; a port to 64-bit Windows is also pretty far along. There's also a Solaris x86-64 port that is mostly working.
Quercus is Caucho Technology's fast, open-source, 100% Java implementation of the PHP language (requires JDK 1.5).