GCEmu is a very incomplete emulator for the Nintendo Gamecube. It uses recompilation techniques and other tricks to achieve a reasonable speed. Although emulation is very incomplete, it shows that 'it can be done' and can be done at a decent speed.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.