I know it may seem counter to the idea of an "INSTANT" message, but it would be great if an IM would not send when a person has a red busy indicator...and would instead launch once they turned yellow or green. This would eliminate pop ups on screens during important times.
I gotta disagree with this one. If you can't be interrupted, use "do not disturb" status, then this won't be an issue.
The nice thing about messaging is that you can sometimes deal with messaging while you're on a call because the call doesn't require your full attention, such as some conference calls, waiting on hold, etc.
Annette Jensen commented
Conversation that you have with person to be able to be deleted and/or not shown on screen as ongoing conversation over several days. It would be better if the conversation would be archived vs seeing it.