Its in Checkfus as well, so its official. Quicker download than hotfile too
Edit: Interesting, S-Cloud is included. Will flash later to test
Edit: Holy smoke its fast! New setup routine, presumably using the S-cloud features. Backup, settings, MMS, SMS etc. with option to restore. This is Samsung account, not google feature.
Did I mention it flies! Stock kernel
Edit: Alphabetical TW Grid! Yay! I dont have an S3, but will guess its a similar launcher or the same.
EDIT: Rooted via the new SuperSU method in Dr. Ketans thread.