In 2009 P. Munz, I. Hudea, J. Imad and R.J. Smith? wrote a paper called "When zombies attack!: Mathematical modeeling of an outbreak of zombie infection". His conclusions were bleak as it seems that if the dead should rise, there will be no room for the living. As you might expect this was a huge hit with the science/media interface.
The book is scheduled to be completed April 2012, but here are some of the pictures contained in my article. I created the man with the gun but I have to thank Martin Berube for the zombies.