Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 2_2 like Mac OS X; en-us) AppleWebKit/525.18.1 (KHTML, like Gecko) Version/3.1.1 Mobile/5G77 Safari/525.20)
I would think alot but then apple is really strict with their employees. I use to to work there and certain things were just not done because of the fear of being fired. Of course this depends on the manager but I think they would have something against their own employees having jb phones when they take such great measures to stop the jailbreak community. That being said mine was jailbroke and I was sure to not let anyone see.