Well, Yahoo Messenger is gone.... bad decision, yahoo. I don't care for your new LiveText, or whatever. I can't access my old Yahoo messenger friends list, and guess what??? That's where all of the people I would like to "live text" with are at.....
There are two "replacement" apps for Yahoo Messenger in the App Store, and they are both garbage right now. One doesn't allow log in (Beehive IM, 508 one star reviews, out of 508 reviews) keeps crashing etc.... The other, "Ya Messenger" or some thing like that, is clunky, the key board takes up 2/3 of the screen on my 6+ and, when someone replies to you, it gets repeated at least 10 times, and when they reply again, their first reply is re-displayed and their 2nd reply repeats several times. Yahoo made a stupid mistake. Someone needs to release a decent Yahoo chat client.