I don't know if this is already being addressed, but what is up with the iMessage service? For the last two months I have been getting up and down service and then ATT tells me I am going over my message allotment. Most of my iMessages are to and from iPhone users and most of my messages show up as blue. Then out of nowhere they are all green for a few days and then like magic, they are blue again. All of us have iMessage turned on and no new settings. Help!