Waze is fantastic for a variety of reasons. A large part of why people use the service is to alert one another to traffic conditions or law enforcement speed traps. Some even use Waze as their lone navigation app. Recently, Waze was updated to provide AMBER Alerts too, bringing a lot more community context to your drive. In a recent blog post, Waze announced they were updating their iOS version as well, bringing a lot of great new stuff to both platforms.