Yesterday, Cyanogen himself stopped by XDA to drop some preview builds for CM10 for some of US variants of the Galaxy S III. Today, the rest of the world gets in on the action, as TeamHacksung member XpLoDWilD offers up a preview build for the international Galaxy S III (i9300). As with the previous release, this thing is packed to the brim with warnings, but when has that stopped you?
The release is very, very early and many of the known issues are fairly critical, such as "On the first call, the other end might not hear you. Next calls are fine." So, if you're on the edge of your seat waiting on a callback for that audition, or you're a secret agent staking out a terrorist's domicile and will, at any moment, need to call your superiors and tell them "He's on the move", this ROM might cause you problems.
You can grab the download from the source link below, but be sure to read all the warnings. These early preview builds are not for the faint of heart.