Waze (free) is a fun mashup of GPS navigation, social networking, and gaming apps that uses the information gathered from the location of users' phones to offer directions and live traffic reports. As reported by Joshua Brustein of the New York Times Bits blog, Waze is now able to change maps in real time to reflect temporary road closures.
Waze gathers traffic speed info from drivers' phones, and currently has about 40 million users contributing to the stream of data. Unfortunately, if a road is closed suddenly because of weather or a bad crash, the Waze system has no way of knowing about the closure to change maps accord
