http://ivm.sourceforge.net/ Internet C++/IVM, a high-speed open-source alternative to Java and .NET now carries a GPL license. Containing a complete virtualized operating system, C++ programs can be ported and run in any environment supporting the virtual machine. Now, featuring a new OpenGL 1.2 API, IVM promises to deliver high-speed gaming and entertainment to the Internet. The GCC compiler and several libraries are available, and are now part of an ongoing project at SourceForge.
