I have an iPod touch 5th generation and am running iOS 6.1.3 (current OS for all "i" devices). Now, I have been having continuous problems with iMessage. When I try to send a message, the progress bar will appear and then freeze up at about 7/8ths of the way. After a few seconds there will be a red exclamation point next to the message telling me that the message was not delivered. I have tried rebooting my iPod as well as switching off and then back on again iMessage. Eventually messages would start sending again, however today when I was trying to troubleshoot the same problem, I got errors that my contacts which I was trying to text were "not registered with iMessage" which is false because I know for fact that these people use iPhones. At my whits end, I disabled iMessage and am currently trying to re-activate it. I enter in my apple ID, then when I hit "next" a message saying "verifying" comes up; and then I wait for a minute or so and a message pops up telling me that I could not connect to the iMessage server, please try again. I have re-attempted this process several times to no avail. I'm just asking if there's a problem with Apple's server and if so, when will it be fixed?