For owners of the quad-core international version of the Samsung Galaxy S III, CM10 Jelly Bean mods are already starting to emerge in the internet ether. So far builds for this version are mostly working to full capacity, with the exception of some camera functions and Wi-Fi tethering not working properly for now. They are working hard on versions for the U.S. variants and actually have builds for the SGS3 on each of the major carriers, but they are far less polished than the international version and still have too many problems. Still, it's great to see they are making quick headway.
Source: S3Forums via PhoneArena