Verizon and another major carrier seem to be tracking rooted phones by seeing who has not accepted updates. They also seem to be doing this as of right now, meaning you could be on their list if you have a rooted device. New builds for phones will include a tracking code which if removed, could potentially leave your phone lifeless without data or voice access. The overall goal here is for carriers to lock down devices tighter than ever, but then provide 1-2 dev devices each year for those of us that wish to actually enjoy our phones.