I suggest we focus tagging these features for Haiti Openstreetmap Response. Most of these features are visible in the GeoEye imagery.

- Roads
- Bridges
- Temporary campsites - tourism=campsite refugee=yes
- Damaged Buildings - building=collapsed
- Large open spaces to serve as relief operation centers

More info here:http://wiki.openstreetmap.org/wiki/WikiProject_Haiti#2010_Earthquake_Response