Orbit aims to do for your iPhone what Syngergy does for Palm's webOS -- aggregate all your contacts and their status -- but with an equal and opposite focus on notification management.
So, not only can you link together your friend's contact info along with their Facebook, Twitter, etc., you can group them into various "orbits" (and each contact can be in more than one "orbit"), create all manner of filters, and raise or lower the "volume" of notification you receive.
So, you can set the volume of your raging editor in chief to "high" and your in-laws to "low".
TiPb has discussed this before -- after the rush to Push Notification, we have devices pinging and poping at us all the time and that can become as useless as no notifications.
Orbit [Free -- iTunes link] has just gone live in the App Store, check it out. Video after the break!