iMessage Group chats

May 1, 2011
Hello, was searching for this in the topics but did not find anything about it. I have a question regarding the group chat in iMessage. It used to work before the iOS update but I tried with two friends and now when I try to add more then one person in one chat the bubbles turn green. Has anything changed on that respect? What am I doing wrong? The three of us have the iMessage turned on.