Wow this is very interesting news. This will really give both yahoo and msn a boost in popularity. I personally never use AIM and I do not know what person in their right mind would want to download their software. Of course they can always use it through Trillian but regardless MSN and Yahoo Messenger have both given users more options than AIM. I am sort of hoping this new "merge" will steal's AIM's thunder in the near future. I think instant messengers will be happy with being able to either have the yahoo or msn interface as their choice in chatting.