For me it works now.
yup, mine is working as well, seems its returning gradually, some of my friends still can't use their imessage, but mine's definitely fine now.
I hope not, as I've sent feedback too. I also already called Apple about it too and they said they would file it. I guess it's time to call again.
There is an earlier thread that was answered by an Apple employee that states they are seeing the iMessage and Facetime servers are down. It is unknown when they will return, however it generally is not an extended period of time.
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