Mayor Bloomberg has announced the citywide launch of Notify NYC [http://www.nyc.gov/portal/site/nycgov/menuitem.c0935b9a57bb4ef3daf2f1c701c789a0/index.jsp?pageID=mayor_press_release&catID=1194&doc_name=http://www.nyc.gov/html/om/html/2009a/pr227-09.html&cc=unused1978&rc=1194&ndi=1] , an emergency messaging system that