I take it still no progress on group messaging with an iphone? I have iMessage turned off, and no group messaging option under messages. MMS is turned on. I do believe this option was available some time back.
From what I'm reading, none of the Canadian carriers offer group messaging. This feature is available on some U.S. networks, leading some to believe that Canadian carriers have purposely disabled this feature. Seems there's not enough demand for group messaging, and carrier call centre reps suggest a workaround in the way of an app that includes group messaging.