there on the 3rd leak of the jellybean touchwiz rom and its running very well but Im waiting for one more build before I rom my new cell.
people are starting to make roms based off the leaked touchwiz and those roms are flying and have all the proper drivers and kernals for the gs3,heck the roms are freaking 600 mb each and loaded up with all the touchwiz goods and not 100mb cm10 roms