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) I have turned iMessage on and off, re-signed into iCloud numerous times, I hard reset the iPhone and even restored it. It will not let me send an iMessage through 3G. Only let's me send a iMessage through Wi-Fi. My 3G works fine with web, email, etc... Just won't work with iMessage. Has anyone had this problem or have any ideas of what to do to come to a solution?? I have an iPhone 4 running iOS 5 through AT&T network.