I was happy to see I could finally text from my Ipad2 and not have to switch to my iPhone 4 each time I needed to send or receive a text message. But after trying to actually send one from the iPad it says # not registered in "Imessage" although all my contacts show up in the TO: box. does this mean like with FaceTime (which unless your're in a circle of friends who all have iPhones etc, is useless) you can only text message to another IPhone or IPad user? I haven't been able to send a text from my IPad 2 yet, even to my own iPhone #. Can someone please help me of let me know if something is wrong. thank you.