Seems the Galaxy S3 update is ready, at least for the non-carrier bloated recipients anyway.
We received a tip today that the unlocked international Galaxy S3 phones are receiving the Jellybean update and subsequently had confirmation from another user. Hopefully the roll out beginning on the unlocked versions will trigger the carriers to get a move on and finish reviewing theirs for OTA release sooner rather than later. As always we’ll ensure the let everyone know ASAP when further updates are released.
Thanks to both tipsters for the early heads up.