Starting today, when I send an iMessage that includes a picture, it says "Delivered" and then a few seconds later it switches to "Not Delivered". This has happened when I've sent iMessages to two people in different parts of the U.S. today. Text only iMessages say "Delivered" and the status doesn't revert to "Not Delivered". I figured my iPhone 5 (with iOS 6.0.2) was the culprit so I reset Network Settings and toggled iMessage and MMS on and off and rebooted the phone. The problem persists. The two people I've sent messages to were wondering why they were getting duplicate picture iMessages from me. Since I assumed the iMessages weren't going through, I re-sent them as regular SMS/MMS messages. Turns out the iMessages are going through even though my phone says they're not. My wife has an iPhone 4 with iOS 6.0.2 installed as well and she just sent me an picture via iMessage that I received but her phone said it was not delivered. I've noticed the problem is occurring both over Wi-Fi and over Verizon LTE. Is anyone else seeing this issue today?