From TheDroidGuy.

According to Samsung, the Galaxy SIII Jelly Bean operating system tests have passed through the firmware tests and is currently awaiting a few things including a ‘public version of software agreement’ from Google.  There have been no issues in the testing of the SII and Galaxy note Jelly bean so far but they went ahead and said that in case they change their minds on the update, they may roll out a ‘value pack’.  There is no cause for worry on this issue now though considering that the SIII and the Galaxy Note 2 are still the hottest items in the Android market at the moment.