I think SL would be benefited greatly by having the Second Life IM system work through a Jabber server set up at Linden Labs, rather then the current arrangement. This would allow many interesting things to happen for both users and scripters. For users, you could have your own IM program up and running, keeping you in touch while you are at school, and can't login to SL. For scripters, it would allow wonderful ideas, like being able to update vendors via IM, or create impromptu chatrooms. Unlike most other "let us IM out of SL" options, this one has been fully researched, and comes with quite a simple open-source solution.
So, please, let us merge SecondLife with the rest of our lives, and just make things that much richer.
http://secondlife.com/vote/vote.php?get_id=1766