I have the exact same problem. When my friend sends out a group message, I can't see who she sends to! And all of them can reply all, except me! They are using iphones or Blackberry. I just see the messages as individual threads. Since each message is an individual, of course there is no option to "reply all". Is this a sprint issue or an android issue? We have 4 different Android phones in the family (Samsung and HTC) and none of us can reply all:-\:-\. So it is not a phone related issue. I am going to change to iphone. Is that why Android is much cheaper? I am afraid it could be Sprint issue as we are all still under contract! I have tried 3rd party messengers but none of them works!