Got an email....
Kid close to Browns, and attending KSU's camp with the Browns today, called his dad and told his dad that the "word" amongst the kids close to Arthur is that he is a silent commit to USC, with only the smallest chance that he ends up at OU with his brother (that is if they decide to play together). Gave the impression that it's USC all the way. The "Dad" in this story is apparently the source of the info that led to the email.
Personally, I'd love it Arthur just came out and announced that he has selected USC, so we can all just move on.