Sprint Samsung Galaxy S3 owners might want to take a look at this one. Android Central Forums member Skunkape60 shared this image with us all a little earlier today that, if genuine, indicates the Android 4.1 update to the Galaxy S3 will start pushing out from October 25. That's tomorrow then. We've got a build number, a reminder to the stores to update their own devices, pretty much everything.
It also looks like the Sprint update will bring some LTE related improvements too. It does say that it will be rolling out over the course of a few weeks, so be patient. But, from tomorrow, start checking for those updates.