Can't wait for a solution to what is becoming more of a (personal) problem every day.
"But consider IM for a moment. Yet another Push medium, the most efficent way to get someone's attention happens to be very expensive for others. Not only for the time you are interrupted, but the interruption tax of 15 minutes it takes to cognitively recover from the task at hand. Receivers are responsible for communicating presence to avoid interruptions, but we don't have ways of automagically signaling presence that is both rich enough and leverages the social network as a filter. Heck, the most efficient ways of communicating rich presence is asynchronous (blog posts, Flickr, Plazes) and yet to be integrated -- there is no Xfire for real worlds."