Some very interesting stats on the slideshow, just click the title and you can view them. The interesting stat to me was 20% of marketers link their primary revenue back to email. I think this number is too low. Email is still the best channel for businesses.
Now I believe mobile will overtake email soon because it is a more direct channel. Mobile apps have the potential to be the greatest marketing channel in our lifetime. The phone is always with us. It knows where we are, where we've been. It knows if we are moving or standing still. It knows where in our store our customers have been. It is also always on, always available.
Email is not dead, but it already knows who will kill it.