Lots of what's in that presentation could be applied to more intellegent sorting of contact "authority" to build something truly useful in the email space. We

Lots of what's in that presentation could be applied to more intellegent sorting of contact "authority" to build something truly useful in the email space. We inherently know when looking at an incoming email how important / timely it is to respond - in my personal experience a huge part of it is related to the sender.