Has anyone tried SMS Helper on the BigBoss repo? It's actually an amazingly flawless addon for the default SMS app that does exactly what you'd expect it to do already. It alters the 'Send' button to read the current amount of characters in the message body. And tells you when you go over a single message (160 chars) The count is displayed as '123/1' to show the characters and number of messages it will take up. I honestly cannot fault it and just wanted to let everyone else know that it exists.