Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3) My iPhone 4 on iOS 5 will just freeze and restart all of sudden just doing regular task like opening up messages. I've restored a couple times but to a back. Still the same thing. Fresh restore is not an option. Any one else having this issue!?