I have several friends with iphones and love the built in imessenger. All are on ios5. One friend who has an iphone 4 with the ios5 sends imessages to me and when I respond back it says "Delivered" like everyone else does. However when he looks at the message its says "Read". None of my messages I send to other friends do this. Some have iphone 4 and some 4s like myself. Just wondering if there is something I can tell my friends to get theirs to show the "read" words.