Last August, a Canadian researcher published an article on the mathematics
of a Zombie Outbreak. Of course, the Zombie Outbreak was of the modern variety, rather than the Vodou variety, and what he found was that, based on his model, civilization would likely be doomed. In the same vein, let's consider how Ushahidi might be used to deal with such a development in New York.
Some things Ushahidi would be useful for tracking:
Locations and numbers
of the undead-- for individual safety and tracking the outbreak
Locations and status of shelter locations and medical facilities-- this could also include realtime tracking of numbers at these locations and supplies
Status of various roads for purposes of evacuation
Areas of civil unrest/violence
which may develop
of the utility grids around the city
Quarantine zones-- their locations and the performance of barricades
Locating isolated/trapped groups
, to assist in rescue efforts
Latest reports on techniques for defeating the undead
I'm sure there are other ways this could be incredibly valuable... if only the protagonists of the various "Dead" movies had had access to something similar!