I have a DroidX running Android 2.3.4. When somebody sends me a text message that goes to other devices too, is there anyway I can tell? Usually the only way I find out is when somebody else does a "reply all" (probably using a newer version of Android), and I get some random message from a number I may or may not recognize.
Also, what about when I reply to the message? Does it only go to the person who sent it to me, or does it somehow auto-reply-all behind the scenes?