I have an iPhone 4S on Rogers in Canada with the latest software update. I've seen online this Group Messaging option for SMS/MMS so that you can have group convos over text with people who don't have iPhones but that option is not available on my phone. I'm trying to figure out if it is only available in the US or if it's Rogers fault or what. I've tried calling Rogers but they were no help. Here is the feature I'm talking about: http://support.apple.com/kb/HT5760
Any help or explanation would be much appreciated, thanks!