Has anyone else been having trouble with iMessage lately? I noticed on my iPhone that my messages wouldn't send. So I went into settings and noticed it said "Waiting for activation." Turned it off and then back on. Same message. Rebooted my phone, and messages would finally send, but then they would stop after a couple hours. I could message from my iPad on the same iTunes account just fine with no problems up until today. Now my iPad is doing the same thing and not sending messages. Curiously, in the settings for my iPad, there is no "Waiting for activation" message. It looks like everything is set up. I'm so frustrated.