Best navigation app for iphone

[weedtank]

I had an Android right before my iphone and the Google Navigation Beta app was hands down the best GPS app I've ever used. I liked how everything was integrated with the phone's search feature and voice turn-by-turn. Also, because it's free!

What do you guys recommend for the iphone?

[CTScott]

Waze

It's free and because of the social networking side of it, the realtime traffic and speed trap reporting is better than any navigation app that I've used on my iPhone.

[eTiMaGo]

Sygic is also quite good, feels more like a standalone GPS. I like Waze but it still needs a lot of polish :)