So This week Google bought Waze for 1 Billion USD's. I hadnt heard of the app yet, so I went to check it out and so far I am super impressed. I've been a user for 4 days now and can tell this app will save me a lot of time, money and frustration.
Here is the Play Store description: https://play.google.com/store/apps/details?id=com.waze&hl=en

So far it has been awesome...Case in point... I was on my way out to the Skykomish to fish the rise in flows last night. Pulled the app up before I left home, and saw that 522 had an accident and huge backups based on real time reports from other users stuck in the mess. I went out through Duvall and saved a lot of time by changing my route.
(I hate being delayed when I am going fishing above all other types of delays)

The app also has Gas price updates, Police speed traps, construction zones, etc etc all reported by other users on the network.

Download it and use it, you'll dig it!