I`ve tried this Y!Multi Messenger and what i found about is it was great.... except when i`m using Y!Multi Messenger, i `think` that it really slow to get a reply or give a reply for the first time when i started to chat. But when the chat already started, well it felt just like Y!Messenger.. Other than that, i felt that this program was an Excellent choice for those who have multiple Y! Messenger account ..